Dev feedback requested. Changing S6E screen refresh rate. - Galaxy S6 Edge Q&A, Help & Troubleshooting

There's really no way around it. The S6E's screen refresh frequency is absolutely killing my eyes.
I've read all the offhand responses people have given in other forums about this issue and they are simply inapplicable to my issue. The S6E screen refresh rate is 59Hz so I tested on my laptop by changing the refresh rate from 40Hz which I've been viewing comfortably for years to 60Hz and instantly I began to have the same problems I do with my device. BTW: my TV is 240Hz and my last device was 30Hz, have never experienced anything like this before in 14 years of IT work.
To preemptively address the troll responses:
1. Not a screen brightness issue, downloaded lux and screen filter day one. Adjusted every which way to no effect.
2. Not a font size issue. Experimented with accessibility options to no effect.
3. Not a blinking or lighting issue.
4. Not a dry eye or eye drop issue.
5. Went to an ophthalmologist. Said my visual acuity is perfect, with my right eye being only slightly farsighted... Slight enough that he does not recommend prescriptive lenses.
This is a a screen refresh issue, plain and simple. I know the power saving modes alter the refresh frequency so it is possible but I'm curious if anyone knows or can help me address this issue. I've only got a few days left on my return period. Device is OC3, rooted, ready to go. I love the device but I have to be able to adjust this if I am going to be able to keep it. I'd be willing to pay for assistance if that is a consideration.
Thanks for your time.
Jericho

It's Pulse Width Modulation that's the problem... Damn.

Related

[REQUEST] Modding the LightSensor

Do you like the light Sensor on Nexus?
I didn't like it.
It's a very good feature, but it works strange.
It is slow in dimming and took already not enough light to the display.
Nexusdisplay is dark dark dark...
Does anybody know, how to tweak this sensor?
Or am I the only one who dislike it very much?
I just set my brightness manually. Done deal.
Perfect.
In the Night I'll put my sunglasses on or at a sunny day I take my nexus blind...
Wherefor is the sensor if it don't work proper?
There must be some settings for...
I think the light sensor works great but it would be even better if we can customize it a little bit. Something like scale up the screen brightness for each level of external light.
Or something like auto lock when it is totally dark (you put it into your pocket?).....but that would cause trouble if you want to use your phone in the theater
I think the light sensor is terrible. I have tried everything but it still seems very finicky on when it will work properly. I regularly go from low light to sunny outdoors and having the feature would properly would be awesome, especially since it worked fine on my last 2 phones and they arent even close to being a superphone.
Trying to make it transition smoother is something I've been meaning to try. The settings for this are in the source tree at frameworks/base/core/res/res/values/config.xml (I override this in my passion vendor overlay). You can tweak the values and rebuild framework-res to try it out.
oh cyanogen, You Are GOD!
Where we can find it?
I've searched the whole framework.
ha he meant the source tree for framework provided by google. not in the framework-res inside of the zip of the rom you are using.
two things I noticed about it:
1 It dims and brightens too quick, it should take an average light level over a longer time period
2 Our fluorescent lights in the office at work seem to confuse it, so that could mean that the lens is too focussed and if you hit one of the lights it goes too bright, miss and it goes too dim as you move around and/or the wavelength of the lights confuse it - though this problem may be more bearable if #1 above is fixed.
I gave up using the sensor. I use the power strip. the 3 settings work great for me.
Ssantos6981 said:
I gave up using the sensor. I use the power strip. the 3 settings work great for me.
Click to expand...
Click to collapse
Yea I mean why should it work? We only paid $530 for it ;/
spyz88 said:
Yea I mean why should it work? We only paid $530 for it ;/
Click to expand...
Click to collapse
Yes, these words are soooo true! They're absolut true.
And: It's not HTCs first device with such a sensor. It's not the first android Handset with such an sensor.
I can't understand, why they did such a thing!
@spyz88: I'll pray your words every time if i see this dumb dimming and flickering.
I too have noticed this problem, and have such, turned it off. Disappointing, yeah.
I hope someone can come up with some good idea/settings, to fix this like google should be doing already :/....
Thanks people
spyz88 said:
Yea I mean why should it work? We only paid $530 for it ;/
Click to expand...
Click to collapse
You can pay £30,000 for a car and things still don't work properly.
Nature of the beast I'm afraid.
OK, we can put our heads down in the sand or we can try to make us happier with it.
Does anybody tells google/htc that this is crap?
Probably we can make it on our own.
yeah it doesn't work very well. Maybe sensitivity needs to be lowered somehow
I hate to say this because I always talk crap about the iphone, but the iphone does have a better way to auto dim the screen with the sensor.
I thought I had a problem because from the get go I installed a screen protector that lays over the sensor, but now I see that other people have the same issue.
It is funny because I can have the phone in one place, but if I change the angle the screen will dim or brighten.
the worst thing is , it comes in the way of reading constantly on your phone , and after two to three cycles of dim/bright , you would eventually give up and disable it. disappointing .
but i think the problem is it samples ambient light with long interval , and then average it in a way that is always behind what it should be
This has bothered me as well and I've been looking for an easy way to fix it.
It seems that the light sensor (or its driver?) is to sensitive or inaccurate. The reported LUX value can fluctuate a lot in constant surrounding light. There is also the possibility that one waves a hand in front of the sensor which can produce undesired brightness changes etc.
My idea:
PowerManagerService.java (frameworks/base/services/java/com/android/server) listens for light sensor changes with a SensorEventListener. Either directly or after (config_lightSensorWarmupTime) a method called lightSensorChangedLocked is called with the sensor value as parameter. This method sets the brightness.
Here we can add some low pass filtering to the sensor value before calling lightSensorChangedLocked. Maybe a simple average of the last 5 values or so will suffice? Maybe take time into consideration as well. Say average 5 or all values received in the last 20 seconds or so. There sure are room for improvements of my suggestions.
My message is that the issue is perfectly fixable and PowerManagerService.java is the file to fix it in.

Questions: Speakerphone and Screen Saturation

I just got a Galaxy Note and have some questions and concerns:
1. The speaker seems very tinny and distorted anywhere close to maximum volume – almost like a blown speaker rattles. It sounds like I am talking to someone via two tuna cans and string. Can you crank your speaker phone volume all the way up without any distortion?
2. Screen color saturation: The colors are way too over saturated. I’ve made the cursory adjustments to brightness and found one interesting app called “Screen Adjuster” and while it allows for general color balance and contrast changes, it won’t let me do much anything with saturation. Anyone know of any apps specifically designed to do this or how to adjust color saturation on this gadget?
3. Screen in general: I had to turn off Automatic Brightness as it seems the screen was dimming/lighting every few seconds. Has anyone else had this issue with their Note and perhaps might have a fix?
4. I’m assuming the only way to get the “Yellow Pages” (YP Mobile) app off and out of my contact list would be via root and a custom ROM, eh?
Any help appreciated.
Thanks.
cat
catfla said:
I just got a Galaxy Note and have some questions and concerns:
1. The speaker seems very tinny and distorted anywhere close to maximum volume – almost like a blown speaker rattles. It sounds like I am talking to someone via two tuna cans and string. Can you crank your speaker phone volume all the way up without any distortion?
2. Screen color saturation: The colors are way too over saturated. I’ve made the cursory adjustments to brightness and found one interesting app called “Screen Adjuster” and while it allows for general color balance and contrast changes, it won’t let me do much anything with saturation. Anyone know of any apps specifically designed to do this or how to adjust color saturation on this gadget?
3. Screen in general: I had to turn off Automatic Brightness as it seems the screen was dimming/lighting every few seconds. Has anyone else had this issue with their Note and perhaps might have a fix?
4. I’m assuming the only way to get the “Yellow Pages” (YP Mobile) app off and out of my contact list would be via root and a custom ROM, eh?
Any help appreciated.
Thanks.
cat
Click to expand...
Click to collapse
No.get a custom recovery and flash the yellow pages zip u dont have to rooted for that or changing modems
sent from memosphere remix
+1
Having the same thoughts here. Have learned to deal with it, but would rather "fix" it.
catfla said:
I just got a Galaxy Note and have some questions and concerns:
2. Screen color saturation: The colors are way too over saturated. I’ve made the cursory adjustments to brightness and found one interesting app called “Screen Adjuster” and while it allows for general color balance and contrast changes, it won’t let me do much anything with saturation. Anyone know of any apps specifically designed to do this or how to adjust color saturation on this gadget?
Any help appreciated.
Thanks.
cat
Click to expand...
Click to collapse
XyonNYC said:
+1
Having the same thoughts here. Have learned to deal with it, but would rather "fix" it.
Click to expand...
Click to collapse
Regarding screen saturation, I've read on some other threads that there may be an option in the ICS international version for this setting but I haven't found any definitive screen caps to confirm this. If anyone running ICS can, that would be spectacular.
I've scoured the app market to no avail. I humbly asked the very swell fellow who wrote "Screen Adjuster" to see if he might write a fix but I'm not sure how difficult this might be.
The bottom line is what many people perceive as "color pop" to me isn't at all. It's a simple over saturated display problem. I'm a photographer and one of the reasons I got this device was to be able to lose my Asus Transformer and use this as an on the go gallery display device, but I'd never show anyone my work on this gadget - it's simply so far off of what real colors look like.
I may have to send it back at the end of my 30 days. Damn shame as I am really coming to like some of the other pluses.
If I figure anything out, I'll post back as from reading other threads there are more than a few people who aren't thrilled with this.
catfla said:
Regarding screen saturation, I've read on some other threads that there may be an option in the ICS international version for this setting but I haven't found any definitive screen caps to confirm this. If anyone running ICS can, that would be spectacular.
I've scoured the app market to no avail. I humbly asked the very swell fellow who wrote "Screen Adjuster" to see if he might write a fix but I'm not sure how difficult this might be.
The bottom line is what many people perceive as "color pop" to me isn't at all. It's a simple over saturated display problem. I'm a photographer and one of the reasons I got this device was to be able to lose my Asus Transformer and use this as an on the go gallery display device, but I'd never show anyone my work on this gadget - it's simply so far off of what real colors look like.
I may have to send it back at the end of my 30 days. Damn shame as I am really coming to like some of the other pluses.
If I figure anything out, I'll post back as from reading other threads there are more than a few people who aren't thrilled with this.
Click to expand...
Click to collapse
Thank for the reply.
I'm on GB right now, and won't be switching to ICS for a while.
Hopefully something pops up.

PWM or backlight failure?

I'm experiencing either a defect or an unfortunate feature on this tablet. I just took delivery of a new one, and while viewing any solid colors besides grey on the screen everything is fine (also no dead pixels), but I'm noticing what appears to be slight backlight flickering/pulsing whenever grey or light blue is shown on the screen. It seems to be PWM (pulse width modulation) of the leds, but I can't be certain it's a defect or just the unfortunate way these tablets' led screens are designed. It's a very subtle but consistent and annoying pulse, but it's definitely there. Can anyone confirm that PWM is what's going on with these tablets or if this is a defective screen. The screen doesn't pulse at all on any other colors solid or only partially filling the screen or otherwise.
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
joeblowma said:
I haven't noticed anything on mine, though I tend to keep the backlight fairly low (17%).
One thought though which is why I'm saying anything, I remember on the nexus 7 there was an issue with one of the friction pins not connecting to the back of the case's antenna fully sometimes, which would cause the radio/wifi to suck extra power resulting in backlight pulses... have you tried turning on airplane mode (disable the cellular) with wifi off to see if that makes a difference? Though it would be odd if it only affected the one colour... I suppose it could be your ambient light source too, does it do it in sunlight?
Click to expand...
Click to collapse
Good idea! Unfortunately, killing the antennas doesn't affect it. And there's no ambient light sensor on the g pad x, so that's out as well I'm so disappointed because there are not dead pixels and only very little light bleed in the corners too.
I didn't mean ambient light sensor would be the cause, more that perhaps you have bulb/s that cycle at a specific rate at a certain colour range that would cause a subtle flicker, I always found those big long roof fixture fluorescent tube lights bad for this sort of thing... I notice some "out of the corner of my eye" subtle flickering on my PC LCD when I have the one CFL on, but not when I have the other LED lamp going instead for example. I just tried a LCD screen tester with various solid colours (cyan, blue) and the only 'flickering' I'm seeing is if I actually move the screen, this panel has some waviness in it that is visible when the screen is off and you angle it just right under a light which seems to pop out on these blues with the backlight turned up - but only when the screen is physically moving. Definitely not a perfect panel, but for me nothing like what you are talking about.
I'm outta ideas though, unless you are running a custom firmware and it does something different than what my stock does.
GL
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
joeblowma said:
edit:/ just read that RFD post from the other thread, and I definitely notice a flicker when in nova's app drawer. It seems to occur only right after I move the tablet and only noticeable at higher backlight settings, if I set it down flat and don't move it, it doesn't do it. Perhaps related to the gyro sensor? Something not isolated fully/properly would be my guess. With the wifi turned on, it also does it along with the activity up/down arrows on the logo... now that I've seen it I wonder if its going to bother me on lower brightness levels now :silly:
Click to expand...
Click to collapse
Thanks for checking. I tried the airplane mode setting, and I swear that fixed it. But then it came back after a few more toggles of data/wifi. Given that you're seeing it too and that others have reported seeing it as well in the RFD thread, I'm thinking it isn't a defect but rather poor design. There's little chance it would be this widespread and only on the exact same color combo for everyone. I think most people just never notice it since you're rarely just looking at a solid or mostly solid grey screen. I wonder if there's a way to disable the gyro on a stock/non-rooted gpad like mine? For me, it does it regardless of brightness level.
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
emilyrugburn said:
I've seen this on different devices too, so it's not just a G Pad X thing. I wanna say I've seen it on my Nexus 5 back in the day, but I've had many devices so it's hard to remember. But yep, noticed it happens on "grey" colors. It's much less noticeable with the brightness lowered. Never really bothered me so never posted about it.
Click to expand...
Click to collapse
My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
Jottle said:
My guess is it's the led pulse width modulation. It affects some screens more than others, but is an issue with led implementation on lcd screens in general. I'm leaning towards keeping the tablet as I'm 99% convinced that another unit would exhibit the exact same behavior. Glad to hear it isn't a defect, but sad that they did not manufacturer a better screen.
Click to expand...
Click to collapse
I don't want to clutter this thread any further, but I'm going into a B&M t-mo store to see if I can test this out on a display device to confirm how widespread this issue is.
Quick update on the flicker issue. It's a problem with all the units, or perhaps just poor design. I did a warranty exchange, and the replacement unit had the exact same issue. Oh well. Just time wasted I guess.
I have the same exact issue with the one i got my mom. Fortunately it doesn't bother her too much but it definitely seems to be a design flaw as we also returned it with the return unit having the same issue
Welcome to the world of flicker.
What you are seeing is very common and an unfortunate side effect of cheap reference designs and a don't care attitude.
There are many new standards for flicker but I doubt they'll be implemented. Flicker pwm needs to be in the 10khz range to be indistinguishable to constant current drives.

AOD image retention

Hello,
Never had a phone with Always on feature so I would like to ask if is a normal behavior to see for a few seconds a clock image retention from AOD when the phone is unlocked.
I have LG V30 H930 EU unlocked model.
Been using a H932 with AOD since day one and have never seen any image retention issues from it's use.
It's not very visible, you have to look very closely and perhaps also have some specific colored wallpaper. It lasts only 2-3secs and then slowly disappears. AOD needs to be on a screen for at least 30-60mins I think.
src151 said:
It's not very visible, you have to look very closely and perhaps also have some specific colored wallpaper. It lasts only 2-3secs and then slowly disappears. AOD needs to be on a screen for at least 30-60mins I think.
Click to expand...
Click to collapse
But the AOD constantly moves.
As previously stated, the AOD on the V30 is not a static image, but a dynamic image, (it rotates to several locations on the screen at a certain interval). That should preclude it from issues involving image burn-in or retention.
Having said this, there is an app on the Play Store that Samsung owners use to combat burn-in on their OLED equipped phones. I don't remember what it's called, but you should be able to do a search by topic. The other thing I would recommend is avoiding having the AOD on it's bright setting. Its a bit too much, even in bright daylight, and it does increase the chance of image retention, IMO.
Bright setting is off, but the brightness of AOD at least on my end is dynamic and depends on the light sensor. This "bright setting" to my eyes do almost nothing.
Ok nevermind, probably I'm just nitpicking... I appears to be "visible" only on a pinkish part of the wallpaper. It's one of the default.
I have (what I consider) an annoying slow, fade to black when I turn off the screen. Perhaps your "retention" is the same, slow change of state for the screen?
Maybe we can call it this way. I'm coming from LG G4 IPS screen which is changing such things instantly obviously and I don't know what is "normal" for OLEDs. As i said, clock number from AOD after unlocking has its footprint for a moment on a wallpaper, slowly disappears.
The screen is otherwise pretty good if I cosider some horrible issues reported here or on reddit.
But still apart from this "retention" issue I found 2 more, but basically small issues described here:
https://forum.xda-developers.com/showpost.php?p=75657168&postcount=670
so don't know what to do.
I'm still within 14 days return/replace period, but I'm worried about worse screen since this is still a lottery.
Not sure what is your issue. Turning off the screen is doing fine. Just one quick "animation" and everything is off.

Question Do you have this display issue/defect?

Hi all!
Shown is an unfortunate issue I've had with the displays of two 1 IV's (US/512Gb models):
(just uploaded this as of posting so the higher res may still be encoding)
I use my phone frequently at night and the display is noticeably off/blown out/seemingly defective at lower brightnesses, especially in the evening. I've already been through the exchange process once for this problem and it took weeks, luckily I caught it in the return window. Now I'm deciding whether to try yet another exchange or just return the new one, because sadly this issue is a deal breaker for me.
Please let me know if you're experiencing the same issue so I can determine whether or not I want to gamble my time with another one of these, as I strongly suspect/fear this could be a widespread hardware defect that has gone relatively unnoticed. Either that, or I got two phones from a clearly bad batch.
Link to image shown in video if you'd like to see if yours has the issue.
You can see the problem best in scenes with very dark color gradients, mostly in the very black range. Most of the time it's not exactly easy to notice especially if you're not looking for it. The display looks flawless and brilliant at 90% and above, although interestingly "creative mode" also seems to degrade color quality. I had an Xperia 1 II before this and creative mode didn't have that perceived negative effect at all. In fact I had exactly 0 of these issues on my mark II.
60/120fps, HDR, etc all don't seem to change the issue, nor did a factory reset or the Xperia Companion app as suggested by Sony. I'm going to escalate me case with them tomorrow to see if I can get any more info. Found another thread about the issue/similar issues.
Sorry about the novel. I'm kinda sad about this whole thing because I otherwise absolutely love the phone.
Yup everybody has this issue. I'm convinced people who say they don't have it are just too blind to notice. I've not seen any video of a 1IV that shows a screen that doesn't have the issue. I always just keep my screen at 90% brightness and just the "Extra dim" quick toggle to make it less bright. If I'm in bed on my phone I use OLED Saver to make it even darker.
Well, I can't see that on mine.
Maybe not the best example, but this is a picture I took this summer, one is at max brightness and the other one is at some 60%. Tried with some other darker photos I have and no traces of that green tint.
Also, my phone switches to dark theme at night and with automatic brightness it certainly goes way below 90% and still everything looks black. Or at least not that obviously green.
...You realise that's not how a screenshot works, right?
Yeah, was just an example photo. But cannot reproduce that. Found topic on reddit, gonna try some HDR stuff but have to say that if that's what triggers it than will certainly never have the problem with it.
Just borrow a mate's phone and film your screen while you adjust the brightness above and below 90%. The difference is very obvious.
Then it should be obvious to my eyes also, like in his video. And that does not happening on the above photo. Anyway, gong back home tomorrow so will play with it a bit more.
No issues on my rooted device.

Categories

Resources