Develop Bugs

(Q) Auto Screen Brightness

Is the screen brightness supposed to drastically change when auto brightness is enable. I've been playing around with it and noticed that when auto brightness is enable the screen will drastically change in different lighting conditions (with a couple second delay) For example, ill walk into a darker room the screen will get a lot dimmer after a couple of seconds and v-versu. The reason I asked is that my eco 4g would gradually adjust to point t where I didn't even notice.
Sent from my SPH-D710 using xda premium

I've noticed it rapidly changing like it can't decide a few times, and overall it's a bit too dim outdoors. Coming from an Evo as well and I never noticed it changing either.
Just going to keep an eye on it, not a huge issue for me. Might see if there's any way to override and manually specify the auto brightness thresholds.

There's a second setting called "Auto adjust screen power" further down on the display page - it could be that. It's some sort of thing that analyzes what's actually on the screen and tries to adjust for it.

I think it may just be a samsung thing. I have a Galaxy Tab 7" and I noticed that it was doing this as well, and it drove me crazy. I just went into settings>display>brightness and turned it down manually to just under halfway indoors and if I know Im going outside, i turn it all the way up.

Ive also noticed thst it was auto adjusting even when i had it disabled which was probablt the "power adjustment" thing... But once i caught it turning the brightness down to "prevent overheating"!?
Sent from my SPH-D710 using XDA App

Really?! Thats bizarre. I wonder if it will constantly have the screen down while wireless tether is running.
daneurysm said:
Ive also noticed thst it was auto adjusting even when i had it disabled which was probablt the "power adjustment" thing... But once i caught it turning the brightness down to "prevent overheating"!?
Sent from my SPH-D710 using XDA App
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Thanks. I also have auto adjust disabled. Since others are seeing it then I assume its a Samsung thing. Ill wait to see if others confirm. BTW this may just be me being a geek. I notice every little thing. The other is that the buttons at the bottom of the phone aren't as sensitive as the eco.
Sent from my SPH-D710 using xda premium

kzoak82 said:
Thanks. I also have auto adjust disabled. Since others are seeing it then I assume its a Samsung thing. Ill wait to see if others confirm. BTW this may just be me being a geek. I notice every little thing. The other is that the buttons at the bottom of the phone aren't as sensitive as the eco.
Sent from my SPH-D710 using xda premium
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A tip I read somewhere but haven't tried yet is to turn auto brightness off and when you do, hold down on the notification bar (don't pull it down, just hold a finger on it) and slide left or right to adjust brightness on the go. Not for sure if it works but give it a try (I'm chargin my phone while it's off now so I can't yet).

Beejis said:
A tip I read somewhere but haven't tried yet is to turn auto brightness off and when you do, hold down on the notification bar (don't pull it down, just hold a finger on it) and slide left or right to adjust brightness on the go. Not for sure if it works but give it a try (I'm chargin my phone while it's off now so I can't yet).
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It works. I just tried it. That is pretty cool!

Worked for me too. That's great. Thanks. Where did you read that? Are there other tips?
Sent from my SPH-D710 using xda premium

kzoak82 said:
Worked for me too. That's great. Thanks. Where did you read that? Are there other tips?
Sent from my SPH-D710 using xda premium
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This was a feature in the original epic as well. It is pretty cool. I just use this to change brightness . The only time i change is when i go out in the sun.
Sent from my SPH-D710 using xda premium

kzoak82 said:
Worked for me too. That's great. Thanks. Where did you read that? Are there other tips?
Sent from my SPH-D710 using xda premium
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Can't remember anymore besides the screen shot one which has been mentioned. Tap home and the power button simultaneously. Also can't remember where I read it.
Sent from my SPH-D710 using XDA App

I would honestly say its a combination of things BC I have used roms where its totally obvious (on froyo) where on others its completely impossible to notice the change.
Sent from my SAMSUNG-SGH-I897 using XDA App

They kept the good features from the Epic. I like the feature in "Contacts" where you can swipe right on a contact to call them and left to send a message as well
Sent from my SPH-D710 using xda premium

daneurysm said:
Ive also noticed thst it was auto adjusting even when i had it disabled which was probablt the "power adjustment" thing... But once i caught it turning the brightness down to "prevent overheating"!?
Sent from my SPH-D710 using XDA App
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I've had the brightness at the max, and turned off the Auto Adjust Screen Power option. Just while browsing XDA the screen dimmed, and when looking at the brightness setting it states "To avoid overheating, maximum brightness has been reduced.". This has happened at least three different times.
I'm hoping this isn't a serious issue. Have you had it do that multiple times for you as well?

Dim the capacitive buttons??

Its probably been asked but a quick search turned up nothing.
I use screen filter at night to further reduce screen brightness but the capacitive buttons stay bright as hell. Is there any way to dim them as well???
Sent from my SPH-D700 using xda premium

If you are using Samsung dock and Desk Home app, that dims the buttons after a short while. I run cm7. But that's if you are not using the phone... there is no known way to dim them if it is in use

Three words "Black Electric Tape"
Sent From My "epic" SPH-D700 via XDA Premium

Isn't electrical tape non-conductive?

Biggoron said:
Three words "Black Electric Tape"
Sent From My "epic" SPH-D700 via XDA Premium
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Lol I did this for like a month straight. Even started a thread about it, however I still would love to see them completely disabled and go all virtual in cm9.
Sent from my CM7.2 OG Epic

xopher.hunter said:
Lol I did this for like a month straight. Even started a thread about it, however I still would love to see them completely disabled and go all virtual in cm9.
Sent from my CM7.2 OG Epic
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Hmm..are these not controlled through the kernel? If they blink when activated maybe there is a way to get them to behave in inverse, like off by default and blink only when touched? I would like to see them completely disabled..wondering why this can't be accomplished..

luna_c666 said:
Hmm..are these not controlled through the kernel? If they blink when activated maybe there is a way to get them to behave in inverse, like off by default and blink only when touched? I would like to see them completely disabled..wondering why this can't be accomplished..
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That would be pretty awesome. I'd like to see that as a feature. I'm sure it would help save some battery, and you can *never* have too much battery
Have you suggested that to any of the kernel devs?

luna_c666 said:
Hmm..are these not controlled through the kernel? If they blink when activated maybe there is a way to get them to behave in inverse, like off by default and blink only when touched? I would like to see them completely disabled..wondering why this can't be accomplished..
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Please make this happen.
Sent from my SPH-D700 using XDA App

Screen flicker

Anyone having screen flicker while phone is in use? Split second screen flickers?
Sent from my SGH-T999 using xda premium

spodie said:
Anyone having screen flicker while phone is in use? Split second screen flickers?
Sent from my SGH-T999 using xda premium
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Turn off auto-brightness, and power saving.

whats weird
thanks for the advice... i tryed but its not it.. i know what u mean were it can go from light to dark.. but this is a very quick flicker of the screen.
could this be kernel related or even hard ware... im gonna try stock kernel.. im using faux 009.. this didnt happen on the 003 kernel...
faux says not all chips are created equal...just a guess... id hate to return for a refurb phone.. when this is my only problem...
time will tell... i was just wondering if anyone gets this very quick flicker.. not a shift in brightness......

spodie said:
Anyone having screen flicker while phone is in use? Split second screen flickers?
Sent from my SGH-T999 using xda premium
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I rarely get them. Once in a while if I am switching from an apps to home screen via home button . I see the main apps on the home screen flicker very quickly once.
I think it started happening when I installed the wicked rom red. Before I was full stock . Matter of fact while typing this message I seen it flicker twice.
Sent from my SGH-T999 using xda app-developers app

If you are in your 14 day period, I would exchange the phone.
This seems like a hardware issue, not a software one.
If the flicker continues then it will only get worse.

Odd screen issue Help!!!!!

Sometimes when i lock the screen to my phone the screen does not light up, the capacitive keys at the bottom light up but the screen does not. I am rooted on a stable cm10 build and have tried other ROMs also. Could not find anyone else with this issue. Thanks. Sent from my SPH-L710 using xda app-developers app

Man_Bear_PiG_402 said:
Sometimes when i lock the screen to my phone the screen does not light up, the capacitive keys at the bottom light up but the screen does not. I am rooted on a stable cm10 build and have tried other ROMs also. Could not find anyone else with this issue. Thanks. Sent from my SPH-L710 using xda app-developers app
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Does the screen eventually come on?

Man_Bear_PiG_402 said:
Sometimes when i lock the screen to my phone the screen does not light up, the capacitive keys at the bottom light up but the screen does not. I am rooted on a stable cm10 build and have tried other ROMs also. Could not find anyone else with this issue. Thanks. Sent from my SPH-L710 using xda app-developers app
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pretty much SOD > sleep of death. Toggling the power button can fix it. Generally a rough app force closing or bad sleep off settings. o=

teh roxxorz said:
pretty much SOD > sleep of death. Toggling the power button can fix it. Generally a rough app force closing or bad sleep off settings. o=
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Not always I had this issue with mine, and my LCD was fried. But my screen didn't show at all.

cbass15 said:
Not always I had this issue with mine, and my LCD was fried. But my screen didn't show at all.
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That's a new one...I haven't seen anything that bad since the evo.

teh roxxorz said:
That's a new one...I haven't seen anything that bad since the evo.
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Haha! that's what everyone said. Even the Sprint guys who fixed it were shocked..

Mine is not quite like that, my screen still works fine but if I lock my phone repeatedly it will eventually cycle to this odd issue to where they white keys light up but the screen does not. Once the issue tosses then I can hit the lock key again and the screen is fine..
Sent from my SPH-L710 using xda app-developers app

Flashed a new rom and it fixed the issue.
Sent from my SPH-L710 using xda app-developers app

Screen stays on ALL NIGHT

I dont know if anyone is facing the same problem I have now, my n2 screen wont turn off by itself. I have set the timer on 15secs, smart stay disable. It juz wont turn off when idle. And if its fully charged, it will stay up all night as well.
Does anyone know how to fix this?
Does it relate to my Omega rom or Redpill kernel?
Thanks

Do you have motion on?

Reboot?
Sent from my GT-N7100 using xda premium

Check developer options, stay awake. Make sure its unchecked.
Sent from my GT-N7100 using Tapatalk 2

Motion is off, stay awake is off. but i noticed if i check the AUTO screen, sometimes it will shut off but not always.

ststar8623 said:
Motion is off, stay awake is off. but i noticed if i check the AUTO screen, sometimes it will shut off but not always.
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I was just discussing the same in some other threads here. I tried everything up my sleeves and nothing helped. Do post if you've already found a fix Thank you
Sent from my GT-N7100 using xda app-developers app

experienced this after upgrading to 4.1.2 weeks ago. backed up everything, complete-wipe then reflashed my rom(always on stock). no more issues. must have been a hiccup.

badbadtz.carlo said:
experienced this after upgrading to 4.1.2 weeks ago. backed up everything, complete-wipe then reflashed my rom(always on stock). no more issues. must have been a hiccup.
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I had this even when I was on 4.1.1. Thought the upgrade would solve it for me but it didn't. Tough luck. Still searching for 3rd party apps that could give me a permanent solution.
Sent from my GT-N7100 using xda app-developers app

i noticed this problem sometimes with 4.1.1 but not with 4.1.2

I dun have a fix to this problem but I have a tasker profile that turns the screen off when battery is fully charged. You might want to try that as an interim.

What is your screen time out once mine was changed automatically check that
Sent from my GT-N7100 using xda premium

There's a button on the side for that
Just kidding, that's very strange. I noticed if you reboot the phone and don't touch it, when it comes on the screen never turns off either. Doesn't matter if it's plugged in or not.

Seifer1975 said:
I dun have a fix to this problem but I have a tasker profile that turns the screen off when battery is fully charged. You might want to try that as an interim.
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I dunno if I'll be able to use tasker. I've not rooted my phone I'm still a noob and dunno if I can pull all that off on my own ^_^
Sent from my GT-N7100 using xda app-developers app

I had that problem when using smart stay and smart rotation settings turned on in display settings. After I turned them off the screen shut off after 30 seconds as it should every time.
Sent from my GT-N7100 using xda app-developers app

Yes I noticed when 'smart stay' is turned on it causes the screen to stay on all the time. It's not a perfect feature. So I've turned it off
Sent from my SGH-I317M using xda app-developers app

do you have the power option to stay on whilst charging?

It's not smart stay, not the screen rotate with your head thingy nor the developer option that keeps the screen on while the device is being charged. I turned all that off. This is clearly a big that I've had from 4.1.1. Can't get rid of it. Annoyance at its peak.
Sent from my GT-N7100 using xda app-developers app

iampunX said:
It's not smart stay, not the screen rotate with your head thingy nor the developer option that keeps the screen on while the device is being charged. I turned all that off. This is clearly a big that I've had from 4.1.1. Can't get rid of it. Annoyance at its peak.
Sent from my GT-N7100 using xda app-developers app
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Weird. That is annoying.
Sent from my SGH-I317M using xda app-developers app

Are you saying that the screen just won't turn off, or that it turns itself on and then won't turn off?
If it's the first, my guess is an app which prevents the screen from turning off, didn't release its lock after being shut down. This can happen with some games, I've seen it with angry birds and jetpack joyride, titanium backup has done it too. Try to empty ram and kill processes, and/or reboot, though I would guess you might have tried that already.
Sent from my GT-N7100 using Tapatalk 2

adytum said:
Are you saying that the screen just won't turn off, or that it turns itself on and then won't turn off?
If it's the first, my guess is an app which prevents the screen from turning off, didn't release its lock after being shut down. This can happen with some games, I've seen it with angry birds and jetpack joyride, titanium backup has done it too. Try to empty ram and kill processes, and/or reboot, though I would guess you might have tried that already.
Sent from my GT-N7100 using Tapatalk 2
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If doesn't turn on on its own. When the bug kicks in, the screen doesn't go off if it's manually turned on or If a missed call or message is left unattended. Hope you got that. But yes, I can turn off the screen manually but doing that every time is ridiculously annoying. The bad thing is I cannot know if the bug is active or not without actually watching my screen till the timeout. Annoying bug! I've tried various things and I do not know what's causing this. I'm on stock rom, never rooted.
Sent from my GT-N7100 using xda app-developers app