Second screen brightness - T-Mobile LG V10 Q&A, Help & Troubleshooting

I've noticed today that my second screen seems to get stuck at a brighter setting when the main screen is off. If I wake up the phone and put it back to sleep it will drop to the low brightness and look normal. I am rooted and on the stock debloted rom. Has anyone else experienced this?
Also another slightly related question, but is the second screen an actual hardware second screen or is it software just using part of a large display? I only ask because when in TWRP it shows everything as one image and I cannot see any line differentiating that there are 2 screens.

There brightness is governed by the light sensor. You might have too much light shining onto it so it gets stuck at the higher setting. It's very sensitive so even moving it a few inches away from a nearby lamp might help.
The second screen is just part of a single LCD panel and it's the software that displays different stuff on it. That's why TWRP looks the way it looks on it.

Is there a way to manually adjust the 2nd screen brightness? At work my 2nd screen is so dim that i can barely even see my notifications, which is the point of the 2nd screen lol.

xxflyingarmbarxx said:
Is there a way to manually adjust the 2nd screen brightness? At work my 2nd screen is so dim that i can barely even see my notifications, which is the point of the 2nd screen lol.
Click to expand...
Click to collapse
i love to brighten my 2nd screen too..:good:

Any news for adjusting brightness of the second screen? I have bought the V10 on monday and have the same problem with seeing notifications at work...

Related

Muddy / dark band(s) on screen when dimmed?

Hi Guys - great phone which I've had a week or so now. Upgraded from the first Galaxy S.
Now I must admit to having very good eyesight (sometimes wish I couldn't see finer details!) and..
On white / grey images (download the various screen test apps to have a look for yourself)
The screen, when on a low brightness, is "muddy" and demonstrates a few vertical darker lines on the screen with mine showing quite a prominent one in the bottom right heading up about half way up the screen.
This is mostly visible when the brightness is at a minimum (regardless of auto or the powersaving options)
When the brightness is turned up it is barely visible, if at all... looks fantastic..
But.. at this point I preferred the screen on the Galaxy S which, when dimmed was more vibrant and didn't have this "problem"
Hands up who can see what I see? Any darker lines visible on your white / grey backgrounds? a side effect of this new subpixel arrangement? totally normal? some pixels not as bright in a row hence darker lines?
What do you guys think?
Cheers, B
W
Could you take a pic or something?
ASAP yes (no camera ironically so will have to ask a colleague!)
hold menu and press power button for screenshot off the device.
Yeah, mine set to minimum brightness and has some line artifacts like when LCD supplied with low voltage. (low brightness setting)
Easily noticeable when displaying grey colors.
I'm also using Screen Filter app, setting brightness even lower, some black points around 0.3cm is exposed at night.
Not sure those points are affected by anti-scratch film though.
Hola
I can confirm that I see the same "line banding" effect when using the device with low brightness. Like others have mentioned I also use the free Screen Filter app to get even lower brightness levels especially when reading stuff in bed in the near dark.
I would think this is a side issue with having the Super AMOLED Plus type screen but I guess only a Samsung tech can confirm.
intruda119 said:
hold menu and press power button for screenshot off the device.
Click to expand...
Click to collapse
Taking a screen shot wont show anything.. its the screen not the image
@ OP
http://forum.xda-developers.com/showthread.php?p=13444483#post13444483
http://forum.xda-developers.com/showthread.php?t=1065359
http://forum.xda-developers.com/showthread.php?t=1062966
65" long exposure exposing some black spots.(digitally enhanced)
Lowest brightness + Highest brightness.
Wondering those spots are caused by screen protector or defective screen or limitation of current AMOLED's.
You can see there is some current leak.(It should be bezel-like black if it is ideally off)
http://img691.imageshack.us/i/93767661.png/
http://img69.imageshack.us/i/36284360.png/
Not sure I understand you cpu98!
Is there a consensus we all have this "problem" - i'm on the verge of taking it back for a refund and "monitoring things"
Anyone understand the tech / spoken to Samsung?
B
Not sure what those black spots are... is your camera messed up? There's spots on the right even off the phone...
Also yes, pure black for SAMOLED still produces SOME light, but it's almost indistinguishable to the human eye.
Take a picture of a dark grey image on low brightness and it should show the bands the best...
cpu98 said:
65" long exposure exposing some black spots.(digitally enhanced)
Lowest brightness + Highest brightness.
Wondering those spots are caused by screen protector or defective screen or limitation of current AMOLED's.
You can see there is some current leak.(It should be bezel-like black if it is ideally off)
http://img691.imageshack.us/i/93767661.png/
http://img69.imageshack.us/i/36284360.png/
Click to expand...
Click to collapse
dinan said:
Not sure what those black spots are... is your camera messed up? There's spots on the right even off the phone...
Also yes, pure black for SAMOLED still produces SOME light, but it's almost indistinguishable to the human eye.
Take a picture of a dark grey image on low brightness and it should show the bands the best...
Click to expand...
Click to collapse
That spot off the phone is on the wall not defective cam. As you can see photos are taken at different angle. And it is visible in naked eye.
Yeah I like its screen very much. That black issues are no problem in real use.
I'm very satisfied.

Brightness

Ok, so I have my brightness all the way up, and I am still having trouble seeing my screen, and yes, it's bright out, but I don't have it in the direct sun light. I know that my iPhone had no problem with screen being brighter outside. I have the auto brightness disabled. Now, when I bought the phone they put a glass protector on it which is clear, and I also have it in the Otter Box case as well. Could this reduce the brightness? Lastly, if the phone is what it is, then is there an app that will make the display brighter? Thank you so much.
AM
use brighter backgrounds, they will eat up battery a little bit quicker but the brighter colors will actually make the screen brighter. using a black background will cause the screen to produce less overall brightness.
Wow, never gave that a thought. Thank you so much, I appreciate the information. I am off to find a brighter background.
AM
am2354 said:
Wow, never gave that a thought. Thank you so much, I appreciate the information. I am off to find a brighter background.
AM
Click to expand...
Click to collapse
If I remember correctly, the screen can get brighter with the auto brightness turned on. Can't remember where I read that, but the thinking was that super bright mode may damage the screen if it's on that way all the time.
Don't forget, Iphone has LCD, we have Amoled, which one of the drawbacks is, it sucks in the sun.
am2354 said:
Ok, so I have my brightness all the way up, and I am still having trouble seeing my screen, and yes, it's bright out, but I don't have it in the direct sun light. I know that my iPhone had no problem with screen being brighter outside. I have the auto brightness disabled. Now, when I bought the phone they put a glass protector on it which is clear, and I also have it in the Otter Box case as well. Could this reduce the brightness? Lastly, if the phone is what it is, then is there an app that will make the display brighter? Thank you so much.
AM
Click to expand...
Click to collapse
Try Lux.
https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=en
ericstephani said:
Try Lux.
https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=en
Click to expand...
Click to collapse
i second Lux
I will give Lux a try thanks.
on top of the auto brigntenss through android, i believe that samsung has a lowe level brightness auto adjustment that changes depending on the image on the screen eg darker when the image is bright and vise versa
waderedsox said:
on top of the auto brigntenss through android, i believe that samsung has a lowe level brightness auto adjustment that changes depending on the image on the screen eg darker when the image is bright and vise versa
Click to expand...
Click to collapse
It is called CABC (Content Adaptive Backlight Control).
http://www.ecnmag.com/articles/2010/04/content-adaptive-lcd-backlight-control
I am not sure how Lux behaves with this feature though.

2nd screen issues

I know this has been brought up before but I am curious if the light bleeding and very dark screen is an issue with just some of the devices? My light bleeding looks horrible and can't stand looking at it in the dark. And during the day time it dims so dark I can't even see if I have a notification. Thoughts?
The light bleed is totally normal. This is an LCD screen and it uses backlight technology. There will be bleed when one part of the screen is lit and the rest is not. The reason its hard to read the 2nd screen out in the sun is because the 2nd screen dims to the lowest possible level to preserve battery life while it is on. It will brighten up if you actually wake the screen. I agree the 2nd screen doesn't look great at night but that is the trade off you get going with LCD. AMOLED wouldn't have that issue but AMOLED screens tend to burn in. Pick your poison.
DarkMage619 said:
The light bleed is totally normal. This is an LCD screen and it uses backlight technology. There will be bleed when one part of the screen is lit and the rest is not. The reason its hard to read the 2nd screen out in the sun is because the 2nd screen dims to the lowest possible level to preserve battery life while it is on. It will brighten up if you actually wake the screen. I agree the 2nd screen doesn't look great at night but that is the trade off you get going with LCD. AMOLED wouldn't have that issue but AMOLED screens tend to burn in. Pick your poison.
Click to expand...
Click to collapse
I understand that but the main reason for getting this device was hopes to see if I have a notification by simply glancing at the 2nd screen. It's so dim I can barely even read it. At this point I wish I just had a flashing led.
drkside said:
I understand that but the main reason for getting this device was hopes to see if I have a notification by simply glancing at the 2nd screen. It's so dim I can barely even read it. At this point I wish I just had a flashing led.
Click to expand...
Click to collapse
I don't have the phone but based on other peoples experiences it sounds like you have a defective phone. The second display should be easily read. People seem to love it.
DarkMage619 said:
AMOLED wouldn't have that issue but AMOLED screens tend to burn in. Pick your poison.
Click to expand...
Click to collapse
Plus their reds look like oranges.
I'm just noticing that the left edge of the 2nd screen, next to the front cams, is a lil brighter than the whole 2nd screen, in the upper corner. Im assuming this is normal. It's not really Noticeable
Wicked68 said:
I'm just noticing that the left edge of the 2nd screen, next to the front cams, is a lil brighter than the whole 2nd screen, in the upper corner. Im assuming this is normal. It's not really Noticeable
Click to expand...
Click to collapse
This is by design. All units have it.
My Amoled devices aren't as readabled in direct sun light. IPS text is so crisp. But as it's been mentioned it's lcd, so there's always gonna be a brighter edge where the backlighting originates.

2nd Screen Light Bleed - Want other user opinions.

Hey guys so I just picked up my LG V10 2 days ago, I knew there were some issues with light bleed on the upper left corner of the 2nd screen but I crossed my fingers and hoped for the best.
The first night I had the 2nd screen off, however last night I decided to give it a try since it seemed like an elegant idea to have on this phone.
In the darkness of my bedroom the light bleed from the upper left was utterly atrocious, it actually fans out and extends into the other screen to about where the notification bar is (this is with the main screen off). The light bleed is also quite bright at night, it is very visible from across the room and really destroys the user experience.
I'll update with photos this evening as I want to know if other users have a significant problem or it's something that happens on every few phones and I can exchange for a unit that hopefully has less bleeding.
I'd love your feedback on how the 2nd screen bleeding WITH MAIN SCREEN OFF is for you especially in a dark room.
Yeah mineb does exactly that..doesnt really bother me too much
If you're in a very dark or completely dark room, you're going to notice light bleed. It's unavoidable with LCD technology. Mine also bleeds a bit into the regular display. Look at the screen directly (not at an angle) and it should look a little better. Angles produce worse backlight bleed - you're going to notice when you're laying in bed and look over at the phone and see the backlight bleed being a lot worse.
The big concern is if the backlight is actually bleeding in normal day-to-day conditions. On my first phone, I noticed in the STORE that the upper left corner of the notification bar was brighter than the rest of the screen. It had backlight bleed bad up there to the point if it being visible in daylight on colored portions of the screen. Exchanged it for another phone on the spot and it looks completely fine now. In most conditions the second screen appears to be floating because your eyes are adjusted to the brighter ambient light and can't see the poorer contrast ratio of an LCD compared to an AMOLED. At night though, you will definitely see that the second screen would have been executed better if LG would implement OLED in their flagship phones.
I see a little bleed on the left edge of the second screen, when the main screen is off, but it doesn't bother me. I kind of like that the notification icon is brighter than the rest of the second screen because it helps me notice that I have a notification, especially since the phone has no notification LED (shame). The second screen is not important to me, plus I don't see the bleed when the main screen is on which is when I'm actually spending significant time on the phone.
There reason you see bleed is because the second screen has a dedicated white LED on the left edge that's separate from the main panel backlight and positioned to "inject" light from the side without being properly integrated with the panel's backlight diffuser. This is why you'll see this, to varying degrees, on every unit. When you're in a well-lit room with the main screen on, the second screen looks perfect, because that secondary LED is off when the main screen is on. Also, the second screen auto-dims based on the amount of ambient light, so you might see the bleed on the "high" mode when you first turn off the main screen, but not when it dims down to the "low" mode after a while. Maybe they'll introduce a new hardware revision that repositions the second screen edge LED or does something else to limit its bleed. We'll know in 1-2 months when the next batch of V10s hits the stores.
I replaced my V10 twice because it had yellow bleed at the BOTTOM of the screen by the navigation buttons and that annoyed me as hell, since it affects the colors of everything I do, especially watching movies. All three had second screen bleed. What was particularly interesting is that each had a different color temperature screen. My first one was reddish, the second one was blueish (like the G4), and my current one is greenish, it actually looks exactly like the Nexus 6P screen (I put them side by side to compare).
I'll agree with Nitemare3219's and siraltus' observations and comments. When the main screen is on nothing is really noticeable. When the main screen is off I have the second screen off. It's so dim I don't see the point to having it on. The second screen is a bit of a gimmick. If I had additional issues I might think of exchanging it (still have 10 days), but I don't notice any other screen issues, and my fingerprint reader works...with a case. Every LCD screen I've had has had some sort of bleed. The problem starts if it is noticeable during normal use/viewing.
Mine slightly lights up the whole right corner 1/5th down the screen, only visible in a dark room. I dont get bleed from the right like ive seen in pictures and youtube.
It's only noticeable when it's pitch black and my main screen is off, so it doesn't bother me at all. It's not noticeable any other time.
First the second screen has already become a staple of my use habits, it's no gimack. Yes bleed is there when main screen is off, no I don't like it, but don't feel it's as big an issue as some make it out to be. That's just me though, I can see it bothering some.
jamor414 said:
It's only noticeable when it's pitch black and my main screen is off, so it doesn't bother me at all. It's not noticeable any other time.
Click to expand...
Click to collapse
Same, the light bleed is noticeable in the dark, but not bothersome. It is not nearly brought enough to light up my room at all, and is very slight in the upper left corner of the second screen. For the usefulness of the second screen with my usage, it's an ok trade off for me.
If your not happy with it and your within the 20 days id return it. I did return my initial one and my second one is better with less bleed.
my bleeding is always noticeable but especially on dark rooms,
I posted the pictures here:
http://forum.xda-developers.com/lg-v10/help/consider-exchange-problems-t3245822

How could you LG??

What's up everyone, loving this k one but how about that screen bleed though!? Yes I know there is a similar post about this, but I want to make it only about the screen bleed issue and anyone experiencing same? I am about to go get my third exchange in less than ten days
I just checked and the only noticeable bleed I noticed was by the top left of the second screen but it's small. Main screen seems ok, to me at least.
cadcamaro said:
I just checked and the only noticeable bleed I noticed was by the top left of the second screen but it's small. Main screen seems ok, to me at least.
Click to expand...
Click to collapse
That's true, and for me it's fairly noticable on the top left, along with under the two front facing cameras there is bleed as well for me. This is my second phone.
Could be like the g2x lol
It's definitely there in the top left corner, but there's no way it would bother me enough to go exchange it.
Same here, if only there was a way to invert the color from BLACK text on White backgroud, to WHITE Text on Black Background. The fade would not be noticeable.
I went through 2 V10s and ended up returning both and going back to my M8. Basically what I noticed was slot of backlight/screenbleed issues when in immersive mode of an app. Like a book reader for example. If the background color is white, up at the top of the screen there would be a gray/black hue leaking through.
Of course once you notice it, you see it in other applications that go into immersive mode. I think there is something happening where the 2 displays meet at the top when immersive mode kicks in.
It's mostly only noticeable when the screen is like 60% brightness or less.
Unfortunately that was a deal breaker for me, even though the rest of the phone was great.
What sucks is that I'm going to have to fight a restocking fee for this problem even though t-mobile store reps saw the problem as well
Sent from my HTC One_M8 using Tapatalk
gustav30 said:
I went through 2 V10s and ended up returning both and going back to my M8. Basically what I noticed was slot of backlight/screenbleed issues when in immersive mode of an app. Like a book reader for example. If the background color is white, up at the top of the screen there would be a gray/black hue leaking through.
Of course once you notice it, you see it in other applications that go into immersive mode. I think there is something happening where the 2 displays meet at the top when immersive mode kicks in.
It's mostly only noticeable when the screen is like 60% brightness or less.
Unfortunately that was a deal breaker for me, even though the rest of the phone was great.
What sucks is that I'm going to have to fight a restocking fee for this problem even though t-mobile store reps saw the problem as well
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
I was thinking in maybe doing the same but getting maybe the HTC m9 or anything other than the Samsungs. Hate them. I will be going today to get my third new exchange since I still have seven more days left. Gets very annoying all this screen bleed issues. This phone is so beast in all other aspects. Camera, sound quality, and love the software but not as much to stock like nexus line.
I have a post here with dead pixels issues, the replacement T-Mo sent me not only had dead pixels as well, but a terrible bleed where the two displays meet. It is only noticeable when you look at the display from an angle, for example phone on the table and you have a light background you see a dark spot there, once I noticed that its driving me crazy. LG quality control is a POS IMO. This phone rocks, but is plagued by stupid QC issues.
There is nothing you can do. All phones will have the "second screen bleed" due to how it's designed.
There are two backlights. First is the normal backlight that lights up the entire display (there is no "second screen" - it's a single LCD panel). Then, there's the secondary backlight - a single white LED on the left edge of the "second screen." This single secondary backlight LED is injecting light through the left edge of the second screen and is not attached to the main backlight diffuser, which is why it lights the screen so unevenly. There are certain times when that secondary LED is on and when it is off. When it is on, it adds extra light near the left edge of the screen, which makes the notifications in that area brighter.
Try this. Turn on the Camera app and observe the buttons that appear on the second screen. Notice that the left-most (or bottom, if you hold it horizontally) button is NOT brighter at all? That's because the second backlight turns off when the camera app is running, and you only see the main screen backlight, which is even. Exit the camera app and you'll see the second backlight turn on and the bleed return. Open the camera app again and you'll see the bleed disappear, as the second backlight turns off.
Do another test. Hold the phone at an angle so the bleed from the second backlight is clearly visible, then go into the settings for the second screen, and turn it off while watching the left-most edge of the second screen - you'll see the "bleed" suddenly disappear, because the secondary backlight turns off (even though the main backlight is on). Turn the second screen back on while watching the left edge, and you'll see the bleed come back as the secondary backlight turns back on.
Yet another way to see it - power off the phone, then power it on while watching the left edge of the second screen. During initial boot, it will look perfectly even, no bleed, because the secondary backlight is off. But half-way through the boot process, the secondary backlight turns on, and you see "bleed."
Now, when the main screen is off, the ONLY thing lighting the second screen is the secondary backlight, so ALL you see is bleed (since the main backlight is off) which looks horrible.
The reason you don't see bleed at all in TWRP is because TWRP doesn't know that there is a second backlight and therefore it doesn't turn it on, since it doesn't know how.
To get rid of the "brighter left side" problem when the main screen is on, all LG has to do is issue a software update that turns off the secondary backlight when the main screen is on - I'm surprised they overlooked this obvious problem.
And here's the kicker - you know why you don't see the second screen bleed on the demo units in stores? Because the Retail Mode app turns the secondary backlight off, just like the camera app.
here's my issue, called again to T/mo and they're sending another RMA..Apart from that am having a defective proximity sensor...will update when the "new" phone arrive
That's not screen bleed. That's where the edge of the lcd panel meets the edge of the bezel around the front facing cameras. It's an unavoidable shadow.
I'm really picky about my phones, especially the screens, but I think you're honestly expecting the impossible. They can't NOT make a shadow there, given the arrangement of the secondary screen backlight and the camera bezel.
If that's your biggest complaint about this phone and the screen, then I think you're being too picky.
Mr. Orange 645 said:
That's not screen bleed. That's where the edge of the lcd panel meets the edge of the bezel around the front facing cameras. It's an unavoidable shadow.
I'm really picky about my phones, especially the screens, but I think you're honestly expecting the impossible. They can't NOT make a shadow there, given the arrangement of the secondary screen backlight and the camera bezel.
If that's your biggest complaint about this phone and the screen, then I think you're being too picky.
Click to expand...
Click to collapse
I know am picky, we all should be with a $600+ smartphone, in the highest end gamma quality control must be precise. Apart from that I already posted a dead pixels thread and this one has dead pixels too...take a magnifying glass crank the brightness to 100% and watch very carefully in a dark, this is my second V10 and a third is on the way
Now dead Pixels are not acceptable. But that shadow will always be there no how many times you exchange it.
Mr. Orange 645 said:
Now dead Pixels are not acceptable. But that shadow will always be there no how many times you exchange it.
Click to expand...
Click to collapse
That shadow was not there on the last phone and its really annoying cause it distorts any solid color that's displayed there, also it's only a "shadow" with light content, it's a bright spot with dark content. It looks worse in real life than it does in pictures
ZiCott said:
Same here, if only there was a way to invert the color from BLACK text on White backgroud, to WHITE Text on Black Background. The fade would not be noticeable.
Click to expand...
Click to collapse
Search for " invert" inside the phones settings [emoji6]
Or go to Accessibility/Vison
It makes the pull down menu dam ulghee althou the rest looks great. [emoji53]
sent with Hugz from my new fully stock, non-rooted VZW LG V10 VS990 which an old faithful still working Rezound helped me to afford to get
H961...nothing for specific 2nd screen inversion
ǀcey said:
Search for " invert" inside the phones settings [emoji6]
Or go to Accessibility/Vison
It makes the pull down menu dam ulghee althou the rest looks great. [emoji53]
sent with Hugz from my new fully stock, non-rooted VZW LG V10 VS990 which an old faithful still working Rezound helped me to afford to get
Click to expand...
Click to collapse
Sorry, I dont see it. I have H961N, and there isnt an option to invert 2nd screen colors on Stock ROM
ZiCott said:
Sorry, I dont see it. I have H961N, and there isnt an option to invert 2nd screen colors on Stock ROM
Click to expand...
Click to collapse
Gross
That means our models r very radically different.
way much more of an extent than I have been realizing.
Or...u have an adware prob or it's hidden
I think when it comes down to basics...each flavor has it's own heart.
Yet..No matter the carrier and especially when it's a basic LG/LGE setting....it shuld b on all.
Forgive my lack of correct wording....
I bet if u can't see it ..the ..invert....setting maybe just hidden
Again...u r stock?
K now i think....
You should Try searching for "invert" with QuickShortcutMaker app https://play.google.com/store/apps/...G6PnXP4eFRw4Tw9vg&sig2=ujB0W4bySmI1c5Qzvof0KA
No I'm not pushing the app...I'm hoping it may enabling u to see the setting.
sent with Hugz from my new fully stock, non-rooted VZW LG V10 VS990 which an old faithful still working Rezound helped me to afford to get
arman3986 said:
That shadow was not there on the last phone and its really annoying cause it distorts any solid color that's displayed there, also it's only a "shadow" with light content, it's a bright spot with dark content. It looks worse in real life than it does in pictures
Click to expand...
Click to collapse
You need to take use of their 3 RMA in 90 day policy and switch out from the V10 than.
gustav30 said:
I went through 2 V10s and ended up returning both and going back to my M8. Basically what I noticed was slot of backlight/screenbleed issues when in immersive mode of an app. Like a book reader for example. If the background color is white, up at the top of the screen there would be a gray/black hue leaking through.
Of course once you notice it, you see it in other applications that go into immersive mode. I think there is something happening where the 2 displays meet at the top when immersive mode kicks in.
It's mostly only noticeable when the screen is like 60% brightness or less.
Unfortunately that was a deal breaker for me, even though the rest of the phone was great.
What sucks is that I'm going to have to fight a restocking fee for this problem even though t-mobile store reps saw the problem as well
Sent from my HTC One_M8 using Tapatalk
Click to expand...
Click to collapse
I noticed the same thing on mine. I hope they will fix it with a software update. I've noticed that it doesn't seem to happen as long as the second screen is active.

Categories

Resources