Develop Bugs

[Q] Anyone suffering Screen Flickering?

Twice in the last couple of weeks I have had the screen flicker when I turn it on, turning it off then back on again has sorted it out both times.
I am hoping it is either down to some CM autobrightness thing, or under/overclocking...or both.
Unless anyone thinks this is the start of my screen dying?
Any input would be great

what do you mean by flicker? a slight flicker of the backlight? and by slight, i mean realllyyy slight

Nah its a full on flicker as in you can't use the phone like it.

I know when the forums started some people, like 2, were saying when they set their brightness setting to the lowest setting it would flicker. I suppose they returned it.

my brothers phone is doing that right now

I've had mine flicker about 5 times in the last four days. The screen semi locks and jumps up and down a little in a juddery way. When i try to scroll it works hap hazardly. Turning the screen off and on sorts it out. Not sure why it does this but it only started at the start of this week.
Sent from my HTC Vision using XDA App

Had this happen to me on a reboot today right as the cm logo was fixing to come up. It was only for a split second, like scribbled green flicker. It was after I updated to 6.1.1
Sent from my HTC Vision using XDA App

Mine does it all the time when the screen auto dims.
That was right out of the box stock.

ok good to know I am not the only one, I will keep an eye on it but I do think it might be to do with autobrightness

Got a screen protector on? Maybe the thickness/quality of screen protector could be an factor?
Sent from my HTC Vision using XDA App

Do the options in Cyanogen Settings,.. UI,.. Auto Backlight,.. Filter thing not sort anything for you?
Sent from my HTC Vision using XDA App

Lennyuk said:
Twice in the last couple of weeks I have had the screen flicker when I turn it on, turning it off then back on again has sorted it out both times.
I am hoping it is either down to some CM autobrightness thing, or under/overclocking...or both.
Unless anyone thinks this is the start of my screen dying?
Any input would be great
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Click to collapse
ddgarcia05 said:
I know when the forums started some people, like 2, were saying when they set their brightness setting to the lowest setting it would flicker. I suppose they returned it.
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Click to collapse
I had the same thing happen and I just returned it from walmart and got a new one.

I can confirm that some phones do have a screen issue where the backlight flickers at certain brightnesses. Mine does it when at lower ones. Stock rom, etc, doesn't matter.
I also have battery issues (45 mins with screen on at 20% brightness will kill the battery).
I am having mine replaced today.

Replaced my phone, no more flicker, and it seems like the battery lasts twice as long now. Very happy so far

screen brightness issue/overheating

i've had my phone since launch and ever since my screen brightness gets automatically reduced due to overheating.
At first, the screen will dim itself ever so slightly. After a few seconds later, it returns to normal brightness and it repeats itself.
Eventually, i notice upper half of my phone as well as the screen itselft getting really hot and the brightness dims permanently.
I usually keep my brightness setting at the highest level but when i go into the menu to increase the brightness setting back to highest, it tells me the brightness is reduced due to overheating. only way to increase the brightness back to highest is to turn off the screen and let it cool down for a few min.
whenever this happens im usually browsing the internet for no longer than 10 min before this kicks in. i seriously dont think im using too much cpu by browsing forums for this super phone to be overheating.
i've read other post regarding auto brightness feature causing issues but i have not enable this feature on my phone. and its kinda hard to believe that i have to lower my brightness to prevent it from overheating.
anyone having this issue? man i'd hate to return this phone and start from scratch. tia

I would love to hear more about this...My experience matches yours perfectly. Does everyone's phone do this? If enough people say no I'm going to get a new one...it is absurd. I got those phone almost primarily for it's beautiful screen which I can't see at full brightness for more than a minute or two!?? fnck that.

Is it possible for us to get a brand new replacement unit even if your 15 day return period is over? Assuming that other users are not experiencing the same problem.

Mine does this as well, I think it's some kind of fail safe if your phone is running hot cranking up the brightness is just going to add more heat so they limit it while it's running hot. Once it cools down then it will allow it again

I have this same issue, I have to recharge above 30 percent to get the point where I can max the brightness up again

Hmmmm... guess im not the only one with this issue and hoping that it is addressed in the future update. However, it seems odd that no one brought this up? Could it be that there are only a few of us that are affected? If so, im beginning to think that this is a hardware defect?

Ive had the phone since day one. I am not having this problem. The only time it ever gets noticeably warm is when using the phone for extended periods while charging. And this is not hot like some people are reporting. I would try exchanging the phone.

Mine did this the other day, I normally have auto brightness on but I was showing a photo so i went to turn it off and crank the brightness up but it didn't let me. I pulled the battery for 10 seconds and it let me do it.

I think alot people are not experiencing this issue because they either keep the auto brightness feature turned on or keep the brightness setting at a low level. I dont wanna exchange my phone if im gonna have the same issue. What can i do?

icexige said:
I think alot people are not experiencing this issue because they either keep the auto brightness feature turned on or keep the brightness setting at a low level. I dont wanna exchange my phone if im gonna have the same issue. What can i do?
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You may be on to something.... I rarely ever have my screen at 100%, mostly because its just too bright for me.
Although, I did watch 2 hours of video (1 hour from the SD card, one streaming from Netflix) at full brightness, and never had a heat issue. A little warm, maybe, but certainly not hot.

Possible "auto-brightness" glitch?

When i select auto-brightness it takes my phone to the lowest possible setting regardless of the environment lighting and it stays there
wondering if i should take the phone back if it's just my phone...anyone else experience this?

Hmm mine seems t I slwsys be low by the I like it like thst.. Have not had a chance to take it outside yet due to the hurricane
Sent from my SPH-L900 using xda app-developers app

thanks for the feedback...i compared it side by side to my gs3 and my gs3 works as it should...my Note 2 goes all the way down to the lowest setting..
BTW im in north east MD...the eye past directly over us here ..we are about 1 hour and 20 minutes from AC new Jersey...

Mine also appears to be a bit on the low side. It is not at the lowest, but auto never appears to hit the highest brightness. When i am in sunlight, i have to untick auto and move the slider to max in order to comfortably read the screen. Hopefully it will get fixed.
JD

I've always thought Samsung's auto brightness sucked regardless of phone. The note 2 is no exception.
Try some apps in the play store, they work better.
Sent from my SPH-L900 using xda premium

shook187 said:
I've always thought Samsung's auto brightness sucked regardless of phone. The note 2 is no exception.
Try some apps in the play store, they work better.
Sent from my SPH-L900 using xda premium
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SGIII didn't have any issue with brightness at all. At least for me.
Galaxy Nexus is absolutely horrible on the other hand. And I'm too lazy to play with AOKP adjustments so I have to do it manually everytime.
My Note II does appear a little darker than it should but I thought it might be only my perception. I'll take closer look at it.

meccadon123 said:
When i select auto-brightness it takes my phone to the lowest possible setting regardless of the environment lighting and it stays there
wondering if i should take the phone back if it's just my phone...anyone else experience this?
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I thought I had the same thing. My phones brightness is all the way down with the auto box checked. I did however uncheck it and then the brightness dropped way down. I chalked it up to auto taking over and misrepresenting what the level of the brightness was on the screen. Dont know if you are seeing that or if you are seeing a true glitch.

i thanked all for your feed back...its obviously not just my phone...again my GS3 works very well...my note 2 not at all...I wonder if samsung set this up like this on purpose to save battery..either way auto-brightness is unusable for me...

Display gradually dims

So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?

CraigVMN said:
So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?
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I've literally watched mine move around but I do have auto brightness turned on. I'll turn it off and let you know if I have the same experience. It could possibly be a bug, I would factory reset if possible.

same happens here

I forget which phone it was, might've been my Nexus 5X (an LG phone), but even with Ambient Brightness and Auto Brightness settings turned off, the screen would subtly dim itself due to internal temperature. It was subtle, yet definitely noticeable when the same content was displayed on the screen for a while. I wouldn't doubt that's what you're seeing here. Do you notice this happening after prolonged use or when the phone is getting warm? I haven't noticed it with my phone yet but I'll keep an eye on it. I don't run with Auto brightness to begin with because it stinks on this phone.

Alcolawl said:
I forget which phone it was, might've been my Nexus 5X (an LG phone), but even with Ambient Brightness and Auto Brightness settings turned off, the screen would subtly dim itself due to internal temperature. It was subtle, yet definitely noticeable when the same content was displayed on the screen for a while. I wouldn't doubt that's what you're seeing here. Do you notice this happening after prolonged use or when the phone is getting warm? I haven't noticed it with my phone yet but I'll keep an eye on it. I don't run with Auto brightness to begin with because it stinks on this phone.
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Now that you mention it, it does occur when I'm playing games

CraigVMN said:
Now that you mention it, it does occur when I'm playing games
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Yeah. My guess is the kernel decides to dim the screen slightly before throttling the CPU or GPU. This way performance isn't impacted while still reducing heat. The screen itself produces a bit of heat but the real concern here is probably the battery, which will get quite toasty while gaming.

CraigVMN said:
Now that you mention it, it does occur when I'm playing games
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Alcolawl said:
Yeah. My guess is the kernel decides to dim the screen slightly before throttling the CPU or GPU. This way performance isn't impacted while still reducing heat. The screen itself produces a bit of heat but the real concern here is probably the battery, which will get quite toasty while gaming.
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CraigVMN said:
So far I'm liking my G7 but I have noticed that although I have auto brightness turned off, the display dims over time (plugged in or running on battery) requiring me to jack up the slider. An ideas?
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Click to collapse
For those that experience this effect while playing games, it's actually a changeable option. Go to Settings/General/Gaming and untick Break Time.
Otherwise I don't know yet. :|

Android P what have they done with the brightness?

Just installed P and now previous brightness level of 63 it's so dim? I have to have it almost on 90% brightness now, why have they messed with this, it was fine as it was

Ady1976 said:
Just installed P and now previous brightness level of 63 it's so dim? I have to have it almost on 90% brightness now, why have they messed with this, it was fine as it was
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Same for me. WTF Google?

The actual brightness is the same, they just changed how the slider works. The first half moved it fast, last half moved it slower. Now the slider is more uniform.

https://www.androidpolice.com/2018/...c-brightness-slider-introduced-android-p-dp3/
Sent from my Pixel 2 XL using Tapatalk

It's definitely not smooth across the entire range, all my brightness is almost all the last 10% and actually a pain to set properly, it's worse for me.

That's more accurate because in bright indoor lighting or outside it's going to be towards the end of the scale. Dim indoor lighting I'm currently at 43%. And in pitch black it goes to 0%. I pretty much never touch my slider anymore after a couple adjustments. Don't get caught up on the percentages. I would be willing to bet that with Oreo at 40% and Pie at 90% the lumens output of the screen was the same.
Ady1976 said:
It's definitely not smooth across the entire range, all my brightness is almost all the last 10% and actually a pain to set properly, it's worse for me.
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Sent from my Pixel 2 XL using Tapatalk

EeZeEpEe said:
That's more accurate because in bright indoor lighting or outside it's going to be towards the end of the scale. Dim indoor lighting I'm currently at 43%. And in pitch black it goes to 0%. I pretty much never touch my slider anymore after a couple adjustments. Don't get caught up on the percentages. I would be willing to bet that with Oreo at 40% and Pie at 90% the lumens output of the screen was the same.
Sent from my Pixel 2 XL using Tapatalk
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Yeah I don't touch mine once it is setup generally but it's definitely not even throughout the scale, only gets really bright from like 85% onwards, just seems odd the real brightness is so high up, makes for fine tuning a bit difficult.

The screen has been rated a minimum of 1.78 nits and a maximum of 496 so if it truly is linear now, 50% is something like only 247 which isn't that bright at all.
Ady1976 said:
Yeah I don't touch mine once it is setup generally but it's definitely not even throughout the scale, only gets really bright from like 85% onwards, just seems odd the real brightness is so high up, makes for fine tuning a bit difficult.
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Sent from my Pixel 2 XL using Tapatalk

Hi
So much for AI on adaptive brightness, it's rubbish, and why do Google try to fix things that aren't broken, who needs AI for adjusting a backlight? Seems nothing more than just being able to market the phone as having AI! Never had an issue on Oreo, had it set at 25% with adaptive brightness and it was always the correct brightness wherever I was, which shouldn't be difficult given it's got a sensor to read the light levels.
Now since Pie, last night I turned my phone on in the dark and was blinded by a bright display (Oreo it would have been at it's lowest level in the dark), so turned the brightness down, turned it again later and the same thing, way too bright, and again this morning in a fairly dark room the same thing, far too bright, so I turn it down again. How long will it take to learn? The old method it was tamed immediately, now I'm constantly fiddling with the brightness, how is that progress!
Is there an option to go back to the old method?
Wish I hadn't bothered upgrading, just another year with an Android update with changes for changes sake.
Regards
Phil

PhilipL said:
Seems nothing more than just being able to market the phone as having AI!
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Totally agree on this. Adaptive battery and adaptive battery are almost non-sense. Only something cool to brand the item.
And Pixel Visual Core is just something super-expensive to make Whatsapp, Facebook and Twitter cameras use HDR+. I'd rather pay something less and not having this feature that is probably expensive (or modifies the perception of the Pixel 2 as super-new and mega futuristic). Also, I've got the feeling they won't use it for Pixel 3 or 4.
Moto X1 was the last to use more CPUs to optimize the phone, before Qualcomm introduced more chips.

Hi
For any one having this issue please report this from your device at Settings > System > About Phone, the more people that flag it the more likely it will get fixed.
For me, I hate these updates that break simple basic functionality and overall add nothing extra to what we had with Oreo. Google really need to test these things properly and stop trying to fix things that simply are not broken!
Regards
Phil

PhilipL said:
Hi
For any one having this issue please report this from your device at Settings > System > About Phone, the more people that flag it the more likely it will get fixed.
For me, I hate these updates that break simple basic functionality and overall add nothing extra to what we had with Oreo. Google really need to test these things properly and stop trying to fix things that simply are not broken!
Regards
Phil
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Already reported, i shouldn't have to have my phone on 90% to be the same as what it was on 63%