I have a Redmi Note 3 with Snapdragon variant here in India.
Yesterday I noticed that my phone has noticeably yellowish display as compared to my old Redmi 2. I opened the settings app on both the phones and the difference was so obvious.
And now it's really bugging me. Xiaomi has resorted to using cheap displays to keep costs low.
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The brightness is about 75% on both. And increasing the brightness just makes it bright. The yellowish tint is not affected at all.
Some of you might say that one phone is running miui and other cm12.1 but yesterday I flashed aosp v4 on Redmi Note 3, so now both are running aosp derivatives and the display has not been affected at all. The yellowish tint that you see in the picture is exactly as it is. Aosp didn't make any difference.
So can you guys compare your phone with an old phone or even your friends phone and post the results? No need for pictures. Just post your observations. The best way to compare is to open setting on both the phones.
Sent from my kenzo using Tapatalk
i can confirm this yellowish display and discussed in miui forum, it's depend on different displays manufacture
btw it's not bother me
thakurneel said:
I have a Redmi Note 3 with Snapdragon variant here in India.
Yesterday I noticed that my phone has noticeably yellowish display as compared to my old Redmi 2. I opened the settings app on both the phones and the difference was so obvious.
And now it's really bugging me. Xiaomi has resorted to using cheap displays to keep costs low.
The brightness is about 75% on both. And increasing the brightness just makes it bright. The yellowish tint is not affected at all.
Some of you might say that one phone is running miui and other cm12.1 but yesterday I flashed aosp v4 on Redmi Note 3, so now both are running aosp derivatives and the display has not been affected at all. The yellowish tint that you see in the picture is exactly as it is. Aosp didn't make any difference.
So can you guys compare your phone with an old phone or even your friends phone and post the results? No need for pictures. Just post your observations. The best way to compare is to open setting on both the phones.
Sent from my kenzo using Tapatalk
Click to expand...
Click to collapse
There is now a solution for your problem, just look at the kernel source thread! A user ( all credits to @beeeto ) compiled a kernel with KCAL - colour control, so now your are able to change the display colour to the way you like!
http://forum.xda-developers.com/showpost.php?p=66491725&postcount=46
With an app like this http://downloads.codefi.re/savoca/kcal or kernel adiutor it is easy to change.
Reading mode
Turn it off
filthyrich77 said:
Turn it off
Click to expand...
Click to collapse
What?
Sent from my kenzo using Tapatalk
thakurneel said:
What?
Sent from my kenzo using Tapatalk
Click to expand...
Click to collapse
Turn the reading mode off
filthyrich77 said:
Turn the reading mode off
Click to expand...
Click to collapse
[emoji58]
Either you are very stupid or I am.
And i think it's you. Whenever trying to be extra smart, read the whole post.
Do you think I wouldn't have discovered till now that I have reading mode turned on?
Also if you had read the whole post you would know that I flashed aosp v4 and still facing the same issue. So unless "reading mode" survived through rom flashes, I don't think that's what causing this.
And ps - don't be extra smart.
Sent from my kenzo using Tapatalk
I compared my Mi4 (CM13) & RN3 (AOSP) on full brightness. My Mi4's panel looks warmer than RN3. Maybe Xiaomi used 2 different LCD manufacturers for supplying them the LCD panels?
You can find out your display panel manufacturer using Terminal Emulator app.
Type
su
cat /proc/cmdline
In the second last line it should say something like this
My Outputs
RN3 SD : "mdss_dsi_tianma_nt35596_1080p_video"
Mi4 : "mdss_dsi_jdi_fhd_cmd_95"
MDSS : Mobile Display Subsystem
DSI : Display Serial Interface
JDI : Japan Display Inc
Tianma : German based display company
NT35596 : LCD display panel
95 : 95% color gamut ?
If your output contains a different LCD manufacturer we can surely say that Xiaomi used 2 different LCD panels on RN3. One being the inferior other being the superior.
If your output is same as mine, it seems your display is faulty. Get it replaced from Amazon/Mi ASAP.
SharkcpN said:
I compared my Mi4 (CM13) & RN3 (AOSP) on full brightness. My Mi4's panel looks warmer than RN3. Maybe Xiaomi used 2 different LCD manufacturers for supplying them the LCD panels?
You can find out your display panel manufacturer using Terminal Emulator app.
Type
su
cat /proc/cmdline
In the second last line it should say something like this
My Outputs
RN3 SD : "mdss_dsi_tianma_nt35596_1080p_video"
Mi4 : "mdss_dsi_jdi_fhd_cmd_95"
MDSS : Mobile Display Subsystem
DSI : Display Serial Interface
JDI : Japan Display Inc
Tianma : German based display company
NT35596 : LCD display panel
95 : 95% color gamut ?
If your output contains a different LCD manufacturer we can surely say that Xiaomi used 2 different LCD panels on RN3. One being the inferior other being the superior.
If your output is same as mine, it seems your display is faulty. Get it replaced from Amazon/Mi ASAP.
Click to expand...
Click to collapse
Well I got this.
msm mdss_mdp.panel=1:dsi:0:qcom,mdss_dsi_tianma_nt35596_1080p_video:1:none:cfg:single_dsi
[email protected]:/ #
Seems like the same manufacturer. Anyway the ten day replacement period is over. So I'm stuck with this.
Sent from my kenzo using Tapatalk
thakurneel said:
Well I got this.
msm mdss_mdp.panel=1:dsi:0:qcom,mdss_dsi_tianma_nt35596_1080p_video:1:none:cfg:single_dsi
[email protected]:/ #
Seems like the same manufacturer. Anyway the ten day replacement period is over. So I'm stuck with this.
Sent from my kenzo using Tapatalk
Click to expand...
Click to collapse
Mi4 on left, RN3 on right. Just realized my Mi4's display is quite warmer than what I thought it used to be
Sent from my kenzo using XDA-Developers mobile app
SharkcpN said:
Mi4 on left, RN3 on right. Just realized my Mi4's display is quite warmer than what I thought it used to be
Sent from my kenzo using XDA-Developers mobile app
Click to expand...
Click to collapse
That's scary. How long have you used mi 4? And did it feel bad from the user experience perspective?
Sent from my kenzo using Tapatalk
thakurneel said:
That's scary. How long have you used mi 4? And did it feel bad from the user experience perspective?
Sent from my kenzo using Tapatalk
Click to expand...
Click to collapse
Around 10 months. No, I hardly noticed anything. I always liked warmer displays .
Sent from my kenzo using XDA-Developers mobile app
Just checked my screen using *#*#6484#*#*, tap s/w version, scroll down to LCM, mine is the same screen tianma nt35596 1080p video
tried setting 'cool' in the display options and also turn off auto contrast and brightness?
I have 3 Redmi Note 3 in my house now. One Dark Grey 32GB, one Gold 32GB and one Silver 16GB, not that variants matter but all 3 of them have different kind of tints. Gold is the coolest one, like seriously very cool display, silver is slightly on the warmer side and my personal dark grey has slightly neutral display when I compare it to the other two. So I guess Xiaomi did something really crazy here. LOL
meangreenie said:
tried setting 'cool' in the display options and also turn off auto contrast and brightness?
Click to expand...
Click to collapse
Don't read the whole post. Ok? Never read the whole OP. You might die or something from the abnormality.
I FLASHED AOSP
NOT RUNNING MIUI
and changing cool and warm didn't matter much even when I was on miui. It was still significantly warmer.
Sent from my kenzo using Tapatalk
Shivam Kuchhal said:
I have 3 Redmi Note 3 in my house now. One Dark Grey 32GB, one Gold 32GB and one Silver 16GB, not that variants matter but all 3 of them have different kind of tints. Gold is the coolest one, like seriously very cool display, silver is slightly on the warmer side and my personal dark grey has slightly neutral display when I compare it to the other two. So I guess Xiaomi did something really crazy here. LOL
Click to expand...
Click to collapse
This is juts plain weird. Wtf are xiaomi trying to do. I would prefer the neutral one, even the cool one is good but this warm thing, I just hate it.
Sent from my kenzo using Tapatalk
Well it's just because of the colour of your device..
Many smartphone manufacturers like Samsung and Xiaomi have different display hue according to the colour of your device, to make it look better.
Previously i had Samsung Galaxy A7 of colour Pearl White and my friend had Midnight Black, both the devices had different colour intensities. It's not like your device is faulty, it's just the display hue Xiaomi gave your device because of your device's colour.
It shouldn't bother you much. If you ever go to service center to change the display, they'll see the colour and change it according to that...
Hi,
Is it possible to find out what screen manufacturer you have on Mi5 without having root ? On RN3 it was possible by entering *#*#6484#*#* -> Software version. But they changed that in Mi5.
Hi,
This is my RN3 Gold variant, pls check the attachment for display maker details, I think its Tianma German based display company.
Note:
Tip 1: In settings menu--> About phone--> kernel version ( click this 5 times to enter test mode) you can find s/w version here
Tip 2: In settings menu--> About phone--> Internal memory ( click this 5 times to enter Band select) This is same as *#*#4636#*#*
Tip 3: In settings menu--> About phone--> CPU ( click this 5 times to create a bug report)
Tip 4: In settings menu--> About phone--> Android version ( click this 5 times to see colourful Lollipop pics)
Related
I'm also the proud owner of a samsung galaxy s2. However, when it comes to new devices, everything i buy, i want to know if everything is correct!
Now i came across these pics on another forum i visit. But I appreciate this forum more(was only reading untill now), as I can see alot of the people are like me here. Exploring every little thing that could be wrong with the phone and not saying it's annoying to ask a lot of questions.
Now this is the problem i came across, haven't seen it anywhere else here, tough i read somewhere else abouth a blue-ish tint on the screen.
These next pictures have the same brightness, and all the same display settings too! So no lcd automatic power management(i don't know the right english word).
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As you can see here the right picture has slightly "harder" colours. But it seems like the left had more contrast. The yellow lines stay yellow on the left one, on the right it's orange allready.
Left one clearly blue ish shine.
Now as I hold my own phone in the same positions as the picture standpoints, i can see mine is also like the blue-ish one with whole white screens.
Can anybody check this on their phone, as I now am worrying wich one is the one Samsung intended it to be?
Also a little other question, does this "automatic screenpower adapting" also changes the whites more to grey on your phones? When i turned it off it changed alot.
I've also seen those pics on Tweakers and checked my screen but I don't see any blueish hue on my screen. However it's hard to check because I don't know how the "other" screen looks like in real life.
Most people won't be able to notice the blue-ish hint on their screens without having another non blueish screen for reference. But I've had 4 Galaxy S2's pass through my ownership, and all of them have this blue-ish tint.
drm111 said:
Most people won't be able to notice the blue-ish hint on their screens without having another non blueish screen for reference. But I've had 4 Galaxy S2's pass through my ownership, and all of them have this blue-ish tint.
Click to expand...
Click to collapse
Yeah i know, wouldn't have noticed it myself. But just by comparing my phone to the blue ish one, i could see mine was like the blue ish one immediatly.
The other one has more of the pink hue like more of the lcd screens is guess...
What causses the difference, is it just some little layer?
Do you think we can talk abouth one of them being broken?
very large keyboard which one is it .
One on the left looks like wrong display settings from the pictures .
But the pictures are not good enough to clarify .
jje
JJEgan said:
very large keyboard which one is it .
One on the left looks like wrong display settings from the pictures .
But the pictures are not good enough to clarify .
jje
Click to expand...
Click to collapse
I can tell you that, in real life, mine looks like like the blue-ish one from those angles. However when i look straight on to the phone it's not like that, it's pretty white, like the 3rd picture but without the blue in the left corner.
It's taken with a good camera.
It's not broken. I'm convinced it's a software problem. The colour temperature is set incorrectly, it's too 'cold'.
If you load up a video in the stock video player app, then go into the settings menu, and make a mental note of the white colour of the menu, then go into colour tone, and set it to 'warm', notice the menu now has a much more neutral white and isn't as blue? Unfortunately the colour tone settings set in the video player isn't saved for else where on the phone.
drm111 said:
It's not broken. I'm convinced it's a software problem. The colour temperature is set incorrectly, it's too 'cold'.
If you load up a video in the stock video player app, then go into the settings menu, and make a mental note of the white colour of the menu, then go into colour tone, and set it to 'warm', notice the menu now has a much more neutral white and isn't as blue? Unfortunately the colour tone settings set in the video player isn't saved for else where on the phone.
Click to expand...
Click to collapse
Thanks, but doesn't change much. It's just a sort of coating. When i just turn it to idle, and i reflect in in outdoor light, I can see some sort off the same blue ish hue on it... You can test it like this...
So very strange what it is...
Ah yeah I see.
Well my other theory is that due to the way AMOLED displays work, as we all know they die out over time, getting increasingly dull with age. But with AMOLEDs, blue pixels have a much shorter lifetime than the Red/Green pixels.
SO my theory is that either there is blue 'cast/coating' over the screen or that the blue pixels have simply much boosted 'intensity', so that over time as the blue pixels age quicker than the other pixels over time, this blue cast/coating/boosted intensity will mean that the blues will still match the other pixels as they age much slower.
Didn't Supercurio release a color fix in his Voodoo kernel for SGS ? I guess you'll need to wait for a similar fix for the SGS 2 series .
JJEgan said:
very large keyboard which one is it .
One on the left looks like wrong display settings from the pictures .
But the pictures are not good enough to clarify .
jje
Click to expand...
Click to collapse
Looks like Swype
/CK
Theres supposed to be a setting called Background Effect where you can choose between dynamic, standard and movie. Maybe thats the difference
erazer007 said:
Theres supposed to be a setting called Background Effect where you can choose between dynamic, standard and movie. Maybe thats the difference
Click to expand...
Click to collapse
I tried that personally, changing it from Standard to Movie helped the problem a fair bit, but it's still there. Dynamic didn't seem to make much difference.
Hmm. Could it be a software problem? Have you tried reflashing it? Or maybe its the problem with the Gorilla Glass.
Does anyone know if the phones in those comparison pictures are both retail? Maybe one is a proto
erazer007 said:
Hmm. Could it be a software problem? Have you tried reflashing it? Or maybe its the problem with the Gorilla Glass.
Does anyone know if the phones in those comparison pictures are both retail? Maybe one is a proto
Click to expand...
Click to collapse
Phones from a couple from holland. Posted on tweakers.net.
Anybody compared their phone from those viewing points? And see if the blue ish hue is visible?
Hmm it seems the difference is there. My phone is with my friend and his phone is less brighter than mine. This maybe because he has used his phone while mine is new.
Gutted...
I hadn't heard about this but my SGS2 is definitely Blue-ish compared to a white screen on my laptop LCD :-(
Can you take them back and get replaced on this? (I have also put a small but deep scratch in mine, so hoping this would be basis for a replacement)
boch501
Well I brought mine back to the store for a refund, it's just too annoying for me.
Especially when you put it to an angle. The screen of my galaxy s 1 is far superior in this respect
I will wait for a newer batch to see if the problems are solved. I do read very little about this problem, does that mean it's just a problem with few devices or most people just don't care/notice it?
Any news about not-blueish displays?
Is there any possibility to find a near white perfect display, or all display suffers of the same bluish issue? (yesterday I've checked a pair of samples here in Italy, and both were quite blu in my opinion)
I've read that blu oled pixel lifetime is lower than other colors, so Samsung could intentionally push blu pixel in order to compensate color balance in the long term.
Also Gorilla Glass is a bit bluish, so it could contribute to increase the overall blue dominant.
janny_buh said:
Any news about not-blueish displays?
Is there any possibility to find a near white perfect display, or all display suffers of the same bluish issue? (yesterday I've checked a pair of samples here in Italy, and both were quite blu in my opinion)
I've read that blu oled pixel lifetime is lower than other colors, so Samsung could intentionally push blu pixel in order to compensate color balance in the long term.
Also Gorilla Glass is a bit bluish, so it could contribute to increase the overall blue dominant.
Click to expand...
Click to collapse
No news anymore.
But I am deffinatly sure that my blue tint is not coming from the screen. When i turn my screen off and reflect it in some light and play with it, i can clearly see that it still is blue...
Here are some pictures taken from engadget... You can see it here.
This one shows it....
Uploaded with ImageShack.us
This one does not. So look carefully.
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Here is the Nexus 10 Pre Calibration Results.
no post calibration due to lack of adjustments right now,so its not much to do than accept it.
i try to explain the results here
first Gamma: average 2.21
that is reference class but the problem here is that the line isnt flat.
it should be straight at 2.2
around 2.0 at the darks and 2.4 in the whites
that isnt that bad that i thought it should be
i was more into that the gamma was way lower, around 1.5
if everyone complains about washed out blacks then they are close to reference.
so stop crying and enjoy details in the dark scenes
i think most other OLED screens have much higher gamma for the darks just to get a fake contrast boost.
the problem then is that you loose details in dark scenes and get crushed blacks.
on the Nexus 10 we dont loose any details.
Next Color temp: 6784 Kelvin is great.
6500 is reference so its just a little bit to the blue side
GrayScale: thats the one that makes white where it should be white
i must say that the grayscale is reference!
Great work Samsung!
the only part that sails away is IRE10 that has to much blue and red in it but then IRE 10 is almost black and you
will not see the colors.
Contrast
Blacklevel is great at 25% brightness on the Nexsus 10
with that brightness(Y: 130= recommended brightness for LCD TVs) you get a contrast ratio of 814:1
average i must say but not bad
with higher brightness you loose blacklevel.
(i also measured the Contrast ratio at 50% brightness and its the same around 800:1
blacklevel at 50% brightness is higher Y: 0.300)
and so to the worst
Color Inaccuracy!
Bad Bad Work Samsung
the calibrator must have slept during the process
not much to say that blue isnt blue on the Nexus 10
165%!! to high brightness and to low saturation
the only colors that is close to reference is CYAN followed by YELLOW and RED.
the others has to low saturation.
Note: the White Dot in the middle is our Whites
and with the reference class grayscale that dot is almost in the box.
its the white dot that controls all other colors so if that is off all colors is off.
but that doenst make any sense here.
the colors should be better but they are not.
i think the main problem here is the Colour Gamut itself.
samsung have choosen the wrong colour gamut for the Nexus 10.
so the conclusion is that Gamma level isnt as bad as everyone thought
the bad thing here is the colors with its low saturation and wrong brightness.
A new "Wider" colour gamut can make this display world class.
Edit: to the Developers that searching for a gamma adjustment you can stop doing that
The Gamma Curve isnt the main problem.
if we are lucky samsung has several different colour gamuts hidden somewhere.
so thats what you should look for.
on my LED tv i have 5 different colour gamuts to choose from and they all get different CIE scores.
if there are several Gamuts hidden they should be named "Wide" "Standard" "EBU" "SMPTE" "BT709"
Edit2: or you could search for "Adobe RGB"
thats one gamut that should have been on the Nexus 10 from start.
Nexus 10 cant even use the full sRGB colorspace,we only get 75% of sRGB it and that is really bad.
i was just checking the colors on my Galaxy S2 and it uses the full Adobe RGB colors.
thats why all colors looks so vivid on most OLED screens
they are calibrated to the wider Adobe RGB Gamut.
info on all colorspaces used:
http://thehdrimage.com/color-managment-and-monitor-calibration/
you can see that you get way more colors with the Adobe RGB compared to the standard sRGB
Awesome, thank you
Sent from my Nexus 10 using xda premium
Great job!!
Despite gamma is well calibrated, colours look aweful. We really need that colour management. Lets hope Franco or any other dev can find the way for this.
Sent from my Nexus 10 using xda app-developers app
Straf said:
Great job!!
Despite gamma is well calibrated, colours look aweful. We really need that colour management. Lets hope Franco or any other dev can find the way for this.
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
Thanks!
yes lets hope so
it should atleast be able to display the whole sRGB colorspace.
Patrik G said:
Thanks!
yes lets hope so
it should atleast be able to display the whole sRGB colorspace.
Click to expand...
Click to collapse
Interesting, do you know what's the color gamut on the iPad? And I thought you were working with Franco to calibrate it, was I wrong? If not how's that going?
Edit: Never mind, I found the one of the iPad
Fidelator said:
Interesting, do you know what's the color gamut on the iPad? And I thought you were working with Franco to calibrate it, was I wrong? If not how's that going?
Edit: Never mind, I found the one of the iPad
Click to expand...
Click to collapse
what gamut does the iPad use?
not working but as i got the tools i can do tests if someone comes up to something.
even if you got saturation controls you need a colormeter to get it right.
Patrik G said:
what gamut does iPad use?
not working but as i got the tools i can do tests if someone comes up to something.
even if you got saturation controls you need a colormeter to get it right.
Click to expand...
Click to collapse
It has 95% of the sRGB gamut.
diff colors on diff models
I'm not sure if anyone has noticed this before, but I've had 3 different Nexus 10 models (with a 4th on the way; RMA) and I've noticed different color. 1 seemed very warm and whites looked silver-esque, and the others seemed picture perfect (to me). Too bad that I had to return the ones with good color because of other defects. Hopefully my next will have no issues, but if it doesn't, it will be my last.
newcombrs said:
1 seemed very warm and whites looked silver-esque,
Click to expand...
Click to collapse
it could be lightbleed that causes that.
the color from the lightbleed seems to be yellow so if you have alot of lightbleed you will get a yellow tone in the whites.
Fidelator said:
It has 95% of the sRGB gamut.
Click to expand...
Click to collapse
you should have that % on the N10 aswell.
but to bad that the calibrator got drunk that day
the strange thing is that you can see a line in the CIE chart
Blue/Magenta/Red are on the exact same line.
its just like the Gamut was cut there and not where the boxes are.
i think i found something in the "fimc_is_fw.bin" file under system/vendor/firmware
"R_SatThresh" : "Gr_SatThresh" :
"BrightnessGain uSaturationGain sContrast sUserContrast sSharpBlur uNoiseInd ConstFitBitsVals ConstFit16Vals ConstFit8Vals"
that looks like 8bit and 16bit colors
we want 16bit so why has it a setting for 8bit?
"usSatThrStrong usSatThrMild usSaturatedScene usSatSceneMinClipPix "
what the hell is this ?
is there different saturations for strong/mild/scene ?
and what adjusts those?
and is there a way to control those settings?
Edit: also found under fimc_is_fw2.bin
gamutLowY12 gamutHighY12
also
wLargeGamut wSmallGamut
gamut large/gamut small ?
yeah thats right
we have a small gamut right now
change it to "wLargeGamut" and maybe we will have correct colors
so many options but so few that can be accessed
question is what controls those?
and why is there different options for those?
questions goes to the Kernel hackers.
GO!
make adjustments options for those above
Patrik G said:
i think i found something in the "fimc_is_fw.bin" file under system/vendor/firmware
"R_SatThresh" : "Gr_SatThresh" :
"BrightnessGain uSaturationGain sContrast sUserContrast sSharpBlur uNoiseInd ConstFitBitsVals ConstFit16Vals ConstFit8Vals"
that looks like 8bit and 16bit colors
we want 16bit so why has it a setting for 8bit?
"usSatThrStrong usSatThrMild usSaturatedScene usSatSceneMinClipPix "
what the hell is this ?
is there different saturations for strong/mild/scene ?
and what adjusts those?
and is there a way to control those settings?
Edit: also found under fimc_is_fw2.bin
gamutLowY12 gamutHighY12
also
wLargeGamut wSmallGamut
gamut large/gamut small ?
yeah thats right
we have a small gamut right now
change it to "wLargeGamut" and maybe we will have correct colors
so many options but so few that can be accessed
question is what controls those?
and why is there different options for those?
questions goes to the Kernel hackers.
GO!
make adjustments options for those above
Click to expand...
Click to collapse
For people that build ROMs like myself, that file is called a "proprietary", which means it is a prebuilt file (in this case a binary) that ROMs have to use to make the device work properly. More than likely you will not be able to feed any values to it. About the only option would be to hexedit the file to see if it can be manipulated.
thanks for the answer ktoonsez
so you where aware of the file already
ktoonsez said:
About the only option would be to hexedit the file to see if it can be manipulated.
Click to expand...
Click to collapse
that i dont understand but give it a try!
Edit: cant you see what settings that is activated on the device and which is not?
Patrik G said:
thanks for the answer ktoonsez
so you where aware of the file already
that i dont understand but give it a try!
Click to expand...
Click to collapse
No problem, I was not aware of the file, just looked it up in my AOKP source and found it under prebuilt proprietary binaries. Maybe someone with more free time on there hands can try to hexedit it, I definetely don't, lol.
ktoonsez said:
No problem, I was not aware of the file, just looked it up in my AOKP source and found it under prebuilt proprietary binaries.
Click to expand...
Click to collapse
ok i found those values when i searched for "gamut" inside the files from the stock rom.
was using the program "seeker" on my PC
http://www.veign.com/application.php?appid=104
Great job so far guys. That .bin file sounds like the ticket. Hopefully the values can be easily modified.
Sent from my Nexus 10 using xda app-developers app
Patrik G said:
i think i found something in the "fimc_is_fw.bin" file under system/vendor/firmware ...
Click to expand...
Click to collapse
Patrik,
Nice find, I wonder if you discuss you findings with a developer you has already created color control capability on rooted devices including the Nexus 7, which we may speed this investigation.
Product: Faux123 Kernel Enhancement Pro
Playstore: https://play.google.com/store/apps/...GwsMSwyLDEsImNvbS50ZWFta2FuZy5mYXV4Y2xvY2siXQ
The developer invites direct contact at: [email protected]
Related XDA thread for his product(s): http://forum.xda-developers.com/showthread.php?p=34502852#post34502852
I hope this helps as I agree color calibration capabilities would be a major feature for many people who are willing to root.
i know who he is but he doesnt answer questions so i let it be
someone else can give him this info
This is kind of a big deal no? Surprised at the lack of interest.
Sent from my Galaxy Nexus using xda app-developers app
amdfanTO said:
This is kind of a big deal no? Surprised at the lack of interest.
Sent from my Galaxy Nexus using xda app-developers app
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Click to collapse
I'm surprised too, I can't understand how the hell comes people are fine with this screen, I won't ever be completely happy with my Nexus unless this is fixed.
Just wanted to let people know that trickster mod (in play store) has color calibration. Root required.
Sent from my VS980 4G using Tapatalk 4
heffzilla said:
Just wanted to let people know that trickster mod (in play store) has color calibration. Root required.
Sent from my VS980 4G using Tapatalk 4
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Click to collapse
yup i saw that. any good profiles? i'm keeping mine stock for now bc i'm bad at calibrating color lol it seems pretty good stock..
jayochs said:
yup i saw that. any good profiles? i'm keeping mine stock for now bc i'm bad at calibrating color lol it seems pretty good stock..
Click to expand...
Click to collapse
Lol, yeah I left it alone. I just thought I would share for the guys who like tinker and weren't aware of it
Sent from my VS980 4G using Tapatalk 4
Is there any overhead with this type of thing that's not kernel based?
Sent from my LG-D800 using Tapatalk 2
LG is oversaturating on this display(don't ask me or question my decision, I've seen the gamut) and I believe it's best to leave it at stock except you want the washed out nexus 4 default colors.
...
Sent from my LG-D800 using Tapatalk 4
hackarchive said:
LG is oversaturating on this display(don't ask me or question my decision, I've seen the gamut) and I believe it's best to leave it at stock except you want the washed out nexus 4 default colors.
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Click to collapse
You should see Samsung phones, talk about oversaturation!
geoff5093 said:
You should see Samsung phones, talk about oversaturation!
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Click to collapse
While I don't disagree, for some reason the S4's screen is still easier on my eyes than the G2's. (and I'm not coming directly from an S4) Maybe the G2's auto-brightness is just leaning towards being too dim, or maybe over-saturating a LCD screen looks worse than an over-saturated AMOLED screen, or maybe it's simply the text that the G2 uses... I don't know what it is, but I'm finding the G2's screen doesn't feel as nice to my eyes as the S4's. I know, I'm probably crazy...
jntdroid said:
While I don't disagree, for some reason the S4's screen is still easier on my eyes than the G2's. (and I'm not coming directly from an S4) Maybe the G2's auto-brightness is just leaning towards being too dim, or maybe over-saturating a LCD screen looks worse than an over-saturated AMOLED screen, or maybe it's simply the text that the G2 uses... I don't know what it is, but I'm finding the G2's screen doesn't feel as nice to my eyes as the S4's. I know, I'm probably crazy...
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Click to collapse
Yeah, you're crazy.
Sent from my LG-D800 using xda premium
geoff5093 said:
You should see Samsung phones, talk about oversaturation!
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Click to collapse
I'm not going to argue here but when I do lay out information I know what I mean.I did a test and this reviewer did it too.They r the same!LG is oversaturating.Watch this before saying what not.Samsung doesn't over saturate.Their displays are produced like that by default and have a wide gamut.But they seem to be correcting that with the s4.
I can tell you what it is.. it's the glass and LCD combo they use. it's weird on the eyes. it's very reflective and can almost get a weird rainbow effect, and it has bad angle viewing.
this screen is almost identical to my rezound.. amazing screen but it had that weird glossy effect to it. the dna however was a diff type of screen apparently bc it didn't resemble that at all... and now the g2 does again.
basically it's hard to explain but htc uses a screen very similar to this in the rezound which is reflective and glossy whereas in the dna and one they switched to some different type. maybe it's the glass? idk. but the g2 does have a diff type of LCD screen to it.
Sent from my LG G2 using Tapatalk 4
---------- Post added at 12:37 PM ---------- Previous post was at 12:35 PM ----------
also idk how you can say the s4 isn't over saturated. I have to set it down to the standard or photo screen setting bc their stock is the dynamic one that's super saturated.
Sent from my LG G2 using Tapatalk 4
hackarchive said:
LG is oversaturating on this display(don't ask me or question my decision, I've seen the gamut) and I believe it's best to leave it at stock except you want the washed out nexus 4 default colors.
Click to expand...
Click to collapse
If you don't want people to ask you why you've come to this conclusion or to even have the audacity to question your decision, then perhaps you're better off not posting something at all. Talk about a terrible post, essentially you say "Do what I tell you, and don't ask why".
You can see here that while the G2 display covers sRGB space nicely, LG have pushed the saturation on R, G, and B values. For instance, look at the two dots at the bottom in Blue. The next to last dot should be in the next to last square for accuracy. Instead, as R, G, and B values approach maximum saturation, the color approaches full saturation too quickly. Hard to explain but stare at the chart for awhile and you will understand :fingers-crossed:
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WPWoodJr said:
You can see here that while the G2 display covers sRGB space nicely, LG have pushed the saturation on R, G, and B values. For instance, look at the two dots at the bottom in Blue. The next to last dot should be in the next to last square for accuracy. Instead, as R, G, and B values approach maximum saturation, the color approaches full saturation too quickly. Hard to explain but stare at the chart for awhile and you will understand :fingers-crossed:
Click to expand...
Click to collapse
Actually not hard to understand if you understand photography,
But from the chart you can see that the colors are also shifted in ways that will make the screen look strange or skin tones maybe too green or red.
So not only does it saturate too quickly but the colors are shifted.
Semantics said:
If you don't want people to ask you why you've come to this conclusion or to even have the audacity to question your decision, then perhaps you're better off not posting something at all. Talk about a terrible post, essentially you say "Do what I tell you, and don't ask why".
Click to expand...
Click to collapse
I don't know why some keep arguing.I own a G2 and we r on the same side.I'm stating the facts and they r as clear as the fact that LG made this phone(or is it made by Apple?).That's y I say don't question the proofs of over saturation I laid before.The picture above is crystal clear!
Um, yeah. The screen looks just fine to me. I really don't care what charts say, I'm sitting here with my g2 next an s4 and the g2 looks less "cartoony" so I'm fine with it. I just thought I would mention that color calibration was available, not to start a lecture on color saturation.
Sent from my VS980 4G using Tapatalk 4
perfectly fine for me too!
hackarchive said:
I don't know why some keep arguing.I own a G2 and we r on the same side.I'm stating the facts and they r as clear as the fact that LG made this phone(or is it made by Apple?).That's y I say don't question the proofs of over saturation I laid before.The picture above is crystal clear!
Click to expand...
Click to collapse
I understand and I'm not arguing with you, I just think the delivery could have been a bit better. You could have at least left it open to foster a discussion, and not been so dismissive to people who might have questions about your conclusion. That's all I was getting at.
Maybe I am a saturation sucker but I did like the colors on my S4, seemed to pop on there.. not so much on the G2, its lighter
IamPro said:
Maybe I am a saturation sucker but I did like the colors on my S4, seemed to pop on there.. not so much on the G2, its lighter
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Click to collapse
Took me a while to get used to the LG screens when I first got my Nexus 4. I actually prefer them now to the S4 and the One. One thing I really like is that there is pretty much no space between the glass and the screen. I think it will grow on you. The screen looks brilliant with video and colorful backgrounds, etc.
I have ordered 2 redmi note 3 32 gb gold one from mi last month and 2nd from amazon 10 days ago.
1st phone showing white disply its ok but 2nd phone showing slightly yellowish disply..
anybody facing same problem?should i replace the phone? or its commen? See the images..
Have you tried disabling automatic contrast (i.e. setting contrast to "standard") on both phones and comparing again? The only other think I can think of is maybe there is more than one manufacturer for the screens and this might be normal?
mine also yellowish
lagunabad said:
mine also yellowish
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bro yellowish is ok for use ? or need to replace?
It is all about different manufacturers tianma or auo as i remember, nothing to be worry about i think
VSPAIRTEL said:
bro yellowish is ok for use ? or need to replace?
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our rn3 got 2 brand lcd panels. idk which one little bit yellowish.
tianma is ok.. sharp is yellowish
Sent from my Redmi Note 3 using XDA-Developers mobile app
There's another thread on the miui forums pretty identical to this. As the others have said, it's due to the display provider, none of your units is faulty. Most of us have the colder looking display. You can send back the other unit if it's really an issue for you.
Recently I replaced my screen and the new one had a terrible yellowish tint compared to the older one. It was like the phone was on night mode all the time and the white colours where more like yellow than white. I tried to mess with colours in kernel adiutor and by reducing the green value things got a little better, not like the old screen but colours where bearable. Today I took the decision to move from miui to cm and when I booted to twrp colours seemed very normal but I thought that maybe it was in my imagination. But after flashing and booting in cm I see now that colours are perfectly normal like my old screen. So I'm starting to think that the yellowish tint has more to do about miui's settings than the different screen models. Maybe whoever has that yellow tint could try to switch to cm and if the problem does not exitst any more it is definitely a miui problem.
Seems the Galaxy Note7 uses PWM
It's a shame, because my (and some other peoples) eyes are too damaged to handle screens that have PWM (nearly all)
I wish Samsung would really do something about this once and for all, maybe have a hidden option to disabled PWM that is activated with those dialer codes, etc.
https://www.youtube.com/watch?time_continue=131&v=SzCgp-FEU50 (skip to 2:10)
http://i3.mirror.co.uk/incoming/art...s615b/Samsung-Galaxy-Note-7-Weibo-leaks-1.jpg
what is PWM... excuse my ignorance
Sent from my SM-N910F using Tapatalk
Diaconescu_Tiberiu said:
what is PWM... excuse my ignorance
Sent from my SM-N910F using Tapatalk
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Click to collapse
I think it stands for Pulse Width Modulation.... Basically it causes the displays to have a slight flicker to them at lower brightness settings as the display is switched on and off very rapidly.
Pretty sure PWM isn't something that can be turned on or off via software - it's how the display controller manages brightness levels.
Sent from my SM-G930W8 using Tapatalk
It can be controlled (diminishing its effects) via Lux Dash app
Sent from my SM-N910F using Tapatalk
Diaconescu_Tiberiu said:
It can be controlled (diminishing its effects) via Lux Dash app
Sent from my SM-N910F using Tapatalk
Click to expand...
Click to collapse
Thanks Tiberiu,
I'm also interested in a solution to pwm, how can this app mitigate the effect of the flickering ?
Unfortunately Pwm cannot be 'turned off' except possibly by having the display at full brightness all the time. Any reduction in brightness uses PWM.
Every LED screen and light is dimmed by PWM in any product on the market. The difference some people see (myself included) is the frequency used for PWM, and that is dictated by hardware or very low-level software in the display controller.
millab said:
Unfortunately Pwm cannot be 'turned off' except possibly by having the display at full brightness all the time. Any reduction in brightness uses PWM.
Every LED screen and light is dimmed by PWM in any product on the market. The difference some people see (myself included) is the frequency used for PWM, and that is dictated by hardware or very low-level software in the display controller.
Click to expand...
Click to collapse
Not 100% true. BenQ monitors and Macbook's (above 50% brightness) don't use PWM for example
Even then on the Macbook example it's still over 100Khz according to some contacts of mine.
Ace&tripleD said:
Thanks Tiberiu,
I'm also interested in a solution to pwm, how can this app mitigate the effect of the flickering ?
Click to expand...
Click to collapse
By leaving the actual hardware screen at full brightness and using an overlay to "dim" the image. Unfortunately this still has battery life implications and some phone screens still use PWM at full brightness, it's much less apparent but can still hurt me.
jtl999 said:
By leaving the actual hardware screen at full brightness and using an overlay to "dim" the image. Unfortunately this still has battery life implications and some phone screens still use PWM at full brightness, it's much less apparent but can still hurt me.
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I know this is working on an ordinary LCD screen, but will it work on a OLED one too ?
Ace&tripleD said:
I know this is working on an ordinary LCD screen, but will it work on a OLED one too ?
Click to expand...
Click to collapse
In what way?
jtl999 said:
In what way?
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Click to collapse
well the technology is different: on a LCD dimming by using a darker overlay will only affect the liquid crystal keeping the backlit at full power, but on a OLED not sure how it works at the pixel level - probably the only way a pixel gets darker is by starting to flicker. In this case a dimming overlay will still produce pwm...
Ace&tripleD said:
well the technology is different: on a LCD dimming by using a darker overlay will only affect the liquid crystal keeping the backlit at full power, but on a OLED not sure how it works at the pixel level - probably the only way a pixel gets darker is by starting to flicker. In this case a dimming overlay will still produce pwm...
Click to expand...
Click to collapse
Your exactly right, and I believe it is implementation dependent and may have seen it in youtube videos captured at the right shutter speed. But it doesn't happen that way on all phones.
Also my cousin showed me his Moto X (AT&T version) and it appeared to be AMOLED but PWM free at any brightness. Anyone help me out and find what version it is?
I just messaged him and will edit if he gets back to me.
It was either a first or second gen Moto X that was AMOLED but didn't use PWM. A potential reverse engineering target? In any case I might be seeing him in Mid September so I would check again.
jtl999 said:
Your exactly right, and I believe it is implementation dependent and may have seen it in youtube videos captured at the right shutter speed. But it doesn't happen that way on all phones.
Also my cousin showed me his Moto X (AT&T version) and it appeared to be AMOLED but PWM free at any brightness. Anyone help me out and find what version it is?
I just messaged him and will edit if he gets back to me.
It was either a first or second gen Moto X that was AMOLED but didn't use PWM. A potential reverse engineering target? In any case I might be seeing him in Mid September so I would check again.
Click to expand...
Click to collapse
I don't think you understand... Just because you can't see the PWM effect doesn't mean that it isn't using PWM - it just means the frequency is high enough that your eye can't see the flicker. It comes down to the frequency the engineers choose to use
I don't notice any flicker on my Verizon Note 7.
Sent from my SM-N930V using Tapatalk
californiarailroader said:
I don't notice any flicker on my Verizon Note 7.
Sent from my SM-N930V using Tapatalk
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congrats on ur note 7
could you lower the brightness to less then 50% and do the pencil test ? and see if you can spot this type of pattern ?
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No need for that. Look at any review of the Note where the screen brightness is lower, or a picture of the screen. You will see the "scrolling lines" effect which is a result of PWM frequency and shutter speed of the camera not matching up.
PWM is annoying at lower frequencies. It seems the Note 7 panel uses a high enough frequency where I can't see it flickering.
I know it varies from person to person but that's luck of the draw I guess. Some people will have no issues while others will get headaches.
LinS123 said:
PWM is annoying at lower frequencies. It seems the Note 7 panel uses a high enough frequency where I can't see it flickering.
I know it varies from person to person but that's luck of the draw I guess. Some people will have no issues while others will get headaches.
Click to expand...
Click to collapse
hi, did you try the pencil test at low brightness ? I haven't found yet a review that measures the pwm more precisely
I don't see any difference in the image at 0% and 25%. Not sure what I'm looking for. But no flickering for my eyes.
Sent from my SM-N930W8 using XDA-Developers mobile app
LinS123 said:
I don't see any difference in the image at 0% and 25%. Not sure what I'm looking for. But no flickering for my eyes.
Sent from my SM-N930W8 using XDA-Developers mobile app
Click to expand...
Click to collapse
just have a look at this video https://www.youtube.com/watch?v=QriSp-Ffgkg
there is definitely a stroboscopic effect on the pencil when moving it quickly