Develop Bugs

[Q] Sporadic Black Screen of Death, any solution?

I have the above issue with stock 4.2. Sometimes the screen goes blank (like a dark Grey back light), the phone is still on, but I can't get into it anymore. It registers touches etc, just the screen doesn't get back.
Flashed clean stock Image, factory reset and data restore.
Only battery pull helps. Happens 1 or 2 times per day in various situations (texting, browsing, whatsapp). Luckily I don't have any of the other 4.2 problems, except the missing December in Contacts. The phone is otherwise snappy as hell with 167 apps installed, recent tasks and swiping to close apps are instant.
Did anyone find a solution yet?
Sent from my Galaxy Nexus using Tapatalk 2

nomad4ever said:
I have the above issue with stock 4.2. Sometimes the screen goes blank (like a dark Grey back light), the phone is still on, but I can't get into it anymore. It registers touches etc, just the screen doesn't get back.
Flashed clean stock Image, factory reset and data restore.
Only battery pull helps. Happens 1 or 2 times per day in various situations (texting, browsing, whatsapp). Luckily I don't have any of the other 4.2 problems, except the missing December in Contacts. The phone is otherwise snappy as hell with 167 apps installed, recent tasks and swiping to close apps are instant.
Did anyone find a solution yet?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Same thing here, never had an issue with 4.1.2 but now it happens 2-3 times a day
Sent from my Galaxy Nexus using xda premium

same me..
this is really annoying..anyone tried a clean install of 4.2 to see if its get solved? im bored to wipe..

andQlimax said:
same me..
this is really annoying..anyone tried a clean install of 4.2 to see if its get solved? im bored to wipe..
Click to expand...
Click to collapse
Let me know how that works... I have been having this problem also. Screen is blank every 2 days it happens once. Ever since 4.2 update. Before that I had no issues like this.
Also un related but I've started to notice faint horizontal lines in my screen. I use auto brightness. Is this normal or return for warranty?

i can confirm this happens to me too.
4.2 stock only rooted with custom recovery.

Same here folks, It may a bug in the 4.2 builds since Sprint did not officially release 4.2 yet.

This happens on my GSM model. It's never been rooted, and only started doing this after the 4.2 OTA.
You can shut the phone down without pulling the battery. Press the power button once to lock (or just wait until it locks on its own). Press the power button again to bring up the unlock screen, unlock and then long-press the power button. A short vibration tells you when the shutdown menu is up, and the SHUT DOWN button is across from the midpoint of the volume rocker, so you can press it without seeing it. The display works fine when it's powered back up again.
I have a theory that the problem is related to another bug in the auto-brightness in 4.2. The display always goes to maximum brightness for a split second before going black. I have set my phone to manual brightness for the last day or so and have not seen the problem again (yet).

same issue here, I'll try to keep the brightness to manual to see if it works

chanchan305 said:
same issue here, I'll try to keep the brightness to manual to see if it works
Click to expand...
Click to collapse
Manual brightness didn't work for me. Everything I have read seems to lead to something wacky in source. I finally went back to 4.1.2. It hurt to go backwards,but no more issues. I'll come back when it is fixed.
By the way, I did discover that if I was at my computer when it happened, I could reboot the phone using adb.

MondoMor said:
This happens on my GSM model. It's never been rooted, and only started doing this after the 4.2 OTA.
You can shut the phone down without pulling the battery. Press the power button once to lock (or just wait until it locks on its own). Press the power button again to bring up the unlock screen, unlock and then long-press the power button. A short vibration tells you when the shutdown menu is up, and the SHUT DOWN button is across from the midpoint of the volume rocker, so you can press it without seeing it. The display works fine when it's powered back up again.
I have a theory that the problem is related to another bug in the auto-brightness in 4.2. The display always goes to maximum brightness for a split second before going black. I have set my phone to manual brightness for the last day or so and have not seen the problem again (yet).
Click to expand...
Click to collapse
bfprd0 said:
Manual brightness didn't work for me. Everything I have read seems to lead to something wacky in source. I finally went back to 4.1.2. It hurt to go backwards,but no more issues. I'll come back when it is fixed.
By the way, I did discover that if I was at my computer when it happened, I could reboot the phone using adb.
Click to expand...
Click to collapse
I experience this issue, but not that frequent. Once every 4 or 5 days, i don't know. I've managed to pull a logcat today as i was near of pc, as posted before, adb/phone is responsive, it even locks the screen normally, there was nothing useful on dmesg. I don't normally use auto-brightness, but enabled it a little while ago, although now i'm not sure if it was enabled the first time it happened. This last time, it wasn't enabled, that I'm sure.
It happened to me both when I was using XDA-app. I have almost 0 user apps installed right now, also uninstalled XDA. Reporting back in a few.

the issue is related to location services
the "bug" has been reported to google http://code.google.com/p/android/issues/detail?id=40140
for a temporary fix turn off services/apps that track you e.g. latitude

ogdobber said:
the issue is related to location services
the "bug" has been reported to google http://code.google.com/p/android/issues/detail?id=40140
for a temporary fix turn off services/apps that track you e.g. latitude
Click to expand...
Click to collapse
huh... i also don't have location services active nor gps. i never do.
and, in our case, the phone is still on, it doesn't reboot, just the screen is black. it's not the same issue.
edit: if i manage to hit it again, my next step will be unroot. full stock.

bk201doesntexist said:
huh... i also don't have location services active nor gps. i never do.
and, in our case, the phone is still on, it doesn't reboot, just the screen is black. it's not the same issue.
edit: if i manage to hit it again, my next step will be unroot. full stock.
Click to expand...
Click to collapse
ok...star this issue https://code.google.com/p/android/issues/detail?id=40019

Crazy Touch Screen Not Responding Bugs with my G3

So most of us know about the System UI crash when using Chromecast, but this is even stranger. [Edit: an OTA update fixed this.] Some times, when I wake my phone up at the lockscreen or at times in the middle of a call - the touch screen stops responding. I can press and/or hold the volume buttons and there is a response on screen but I can not interact with the phone at that point. I can't continue to do battery pulls everytime. This is crazy. I'm on stock software. No crazy mods or anything. I've done a reset in the past and flashed the stock package again but this still happens every few hours. Only happens when the screen just wakes up...
Edit: This is a confirmed fix for me.
If you face the same issue, try:
open dialer
press 3845#* INSERT THREE DIGETS OF YOUR MODEL NUMBER THE PRESS #, for example, I am the F400K, so 3845#*400#
Hardware Device Test > Touch
update touch firmware
touch firmware version
wait 10 sec
reboot

I would say there is a misbehaving app causing the phone to lag in wake (that is all the unresponsiveness will be, extreme lag).
Sent from my Nexus 5 using Tapatalk

@Lennyuk - tried for over 30minutes after leaving it alone, I doubt it's a delay... Battery pulls work, but that's not the point.

deedscreen said:
@Lennyuk - tried for over 30minutes after leaving it alone, I doubt it's a delay... Battery pulls work, but that's not the point.
Click to expand...
Click to collapse
That was not his point.....to Find the app that is causing it go one by one uninstalling until you find it.... Something probably to do with app and the screen
Sent from my SM-N900P using Xparent BlueTapatalk 2

Epix4G said:
That was not his point.....to Find the app that is causing it go one by one uninstalling until you find it.... Something probably to do with app and the screen
Sent from my SM-N900P using Xparent BlueTapatalk 2
Click to expand...
Click to collapse
Totally agree with @Epix4G on this one. I am assuming you had a korean variant? The SK Telecom stock image is pretty ugly. Took me 3 debloat attempts before I had it behaving the way I wanted it to, but before I debloated, I had some lag issues (SK Telecom... grrrhhh).
Historically, Korean carriers (much like AT&T and Verizon) love putting useless junk on the phones for "productivity" but really they are there to charge Korean users more for other services, etc.
If you haven't done so, I would root and debloat, and see how big of a difference it makes (absolutely amazing performance after debloating on my F400S).

^^^^ - Will take that into consideration.
This may be a possible fix for now, can't yet confirm
open dialer
press 3845#* INSERT THREE DIGETS OF YOUR MODEL NUMBER THE PRESS #, for example, I am the F400K, so 3845#*400#
Hardware Device Test > Touch
update touch firmware
touch firmware version
wait 10 sec
reboot
It may or may not help
EDIT: It's been a few weeks and I haven't had this issue again. Usually every 4-6 hours it used to happen after powering on the screen, but so far so good.

Tried that with 855 version, it's not working. This is REALLY depressing as i just got a new phone and from day one i'm having this problem. I just can't believe LG screwed up like this, and there's no mention of this anywhere online other than this XDA thread. I hope i don't have to root and install custom rom as this really defeats the purpose of the phone.

@deedscreen
I'm having exactly the same problem on an 850 and tried your firmware method. The version number of the firmware did not change after reboot.
ic_fw_version info
SYnaptics 5.5
PanelType 1
version: v1.22
IC_product_id[PLG313]
Touch IC : s3528(family_id = 1, fw_rev = 1)
What version is your firmware? Also, did you find out about the fix from somewhere?

I have the F400K, but just got a US T-Mobile edition, (I'll eventually switch my signature). I would honestly suggest waiting for an OTA update. Call LG so they can document this. If that touchscreen update method doesn't work, I'm not sure what to do. I found the method somewhere online, I don't recall where exactly. If someone can figure out how to side load the touch screen firmware from a working Korean model to others, that would be great. For now, keep calling LG. It won't do much at first, but at least they'll have reports of this issue.
I have (RAW) touch screen firmware version: 30 05 51 96

Same problem, but not only on lock screen
Since 5 days I have my G3 (855 Modell). I was happy the first two days, then I discovered the problem, that the device is always unlocking itself, when in my front pocket. It's because of the Knock on feature. I deactivated this now.
But since yesterday i have the same issue: three times, i was unable to unlock my phone. The touchscreen simply did not respond. I had to remove battery. Today, I read this post and tried the firmware update of the touch, but I have the impression it did not change something in the version.
After this, today I had again once time the non responding touch while unlocking and shortly after, I had the issue after ending a phone call! The touch did no longer respond and had to remove the battery again!
I hope this is not a hardware issue, otherwise I will hurry up to the seller to exchange the phone, because its only 5 days old.

This is happening when the screen is on right? Or is the screen turning off and then not turning I again?

You need to keep Knock feature on, someone already said this. That's why your screen is freezing.

Daum Ex said:
You need to keep Knock feature on, someone already said this. That's why your screen is freezing.
Click to expand...
Click to collapse
Upps, yes, I just read this message now. To late: I was in the shop now and got mine exchanged. Anyway, that issue with the knock on feature should be solved also by LG: it's not acceptable, that the phone is always unlocking in my pocket.But then I wait with deactivating knock on for the moment.
So bad: such a good phone and such an annoying bug

icon71 said:
Upps, yes, I just read this message now. To late: I was in the shop now and got mine exchanged. Anyway, that issue with the knock on feature should be solved also by LG: it's not acceptable, that the phone is always unlocking in my pocket.But then I wait with deactivating knock on for the moment.
So bad: such a good phone and such an annoying bug
Click to expand...
Click to collapse
I sold mine after a few days, i was sick with it. I disabled the knock feature through the hidden menu only to have the screen freeze every day. What, i can't use the phone the way i like? I have to face the screen outwards in my pocket and risk damaging it? Screw that...
That, plus the overheating and horrible build quality (back got scratched in my pocket) was a deal breaker for me...

Daum Ex said:
I sold mine after a few days, i was sick with it. I disabled the knock feature through the hidden menu only to have the screen freeze every day. What, i can't use the phone the way i like? I have to face the screen outwards in my pocket and risk damaging it? Screw that...
That, plus the overheating and horrible build quality (back got scratched in my pocket) was a deal breaker for me...
Click to expand...
Click to collapse
Yes, indeed i also think about it. I got an official statement from support, regarding that the phone is unlocking all the time by itself in my pocket. They told me stuff like:
- this is a normal behaviour and can happen (!!)
- don't put your phone in the front pocket
- use the quick circle case to prevent...
- disable knock on (which is at least not possible over a standard setting, but only via the hidden menu).
I wrote back:
- that for me, this is not a normal behaviour
- that 90% of male users are wearing the phone in the front pocket
- that I don't like to buy a case only to prevent a bug of a premium telephone and
- finally, that they please could tell me, where and how to disable knock on
I am curious about their answer...

Good luck with that, disabling it through the settings doesn't change anything and they probably won't have a fix for months. They'll probably fix it though Android L update which will sadly come 6 months from official release at least.
Next time i purchase an Android phone i'm going with Nexus line...

icon71 said:
Since 5 days I have my G3 (855 Modell). I was happy the first two days, then I discovered the problem...
Click to expand...
Click to collapse
So what happened? How is it doing now?

Hey everyone, I just wanted to report my results of this touchscreen bug.
Well, I've only had my D851 for a week now. Of course I rooted it the same day I received it.
I had no touch issues until after restoring apps with Titanium Backup. I'd restore all user apps, then very few system app via XML. Since I just upgraded from a Galaxy S3 T999 I limited the system apps greatly. So much in fact that I only restored 1 system app......Media Storage 4.4.4 (Playlist). THAT WAS MY SCREEN KILLER!
The media scan on my D851 would render my screen unresponsive. I could only hold the power button and click power off or restart or whatever else was on that power menu. Then the phone would reboot after minutes of of a dead screen.
I flashed back to stock and reproduced the same issue. So now I've been running this device for 3 days without any screen lockups. I just have to rebuild my playlist again LOL.
I hope this helps someone here.

Knock
If you turn off the ability to wake by knocking the screen, it causes this issue where the screen locks. Turn it back on and the problem seems to go away.
I think LG really has to deal with this issue.

Hi guys, I have red a lot about this issue but I'm still confused with my LG G3 855.
First I realize problem with unlocking the phone using double click. Tried to upgrade touch software firmware using hidden menu and the screen became almost totally unresponsive. Tried to re-flash original 5.0 and 4.4.2, factory reset, battery removed, etc. but no luck.
I'm wonder if this is a software problem or became hardware. Should I consider replacing display or problem is in motherboard?
I really don't know what to do! Appreciate any comments or suggestions!!!
Thanks in advance!

Screen stops working randomly

I was just wondering if this happens to anyone else. So sometimes I go to unlock and the screen doesn't let me do anything, it happens not just when unlocking but when I'm using the phone too, it's really annoying when I'm trying to text someone back or try to answer a call. It doesn't happen all the time so I could live with it....but I'm wondering if anyone has a fix or has the same problem.
Also I have my phone rooted and g3 tweaksbox, and I turned off the knock in code..I don't know if any of these have factors.

WendyB87 said:
I was just wondering if this happens to anyone else. So sometimes I go to unlock and the screen doesn't let me do anything, it happens not just when unlocking but when I'm using the phone too, it's really annoying when I'm trying to text someone back or try to answer a call. It doesn't happen all the time so I could live with it....but I'm wondering if anyone has a fix or has the same problem.
Also I have my phone rooted and g3 tweaksbox, and I turned off the knock in code..I don't know if any of these have factors.
Click to expand...
Click to collapse
Is it lag? Does it only happen for a few seconds before it starts again?

It's not lag..I don't think unless it's a really long lag ?... I turn my screen on and off and it would still be frozen. Maybe after a few mins of turning the screen off and on again it will work...

WendyB87 said:
It's not lag..I don't think unless it's a really long lag ?... I turn my screen on and off and it would still be frozen. Maybe after a few mind not turning the screen off and on again it will work...
Click to expand...
Click to collapse
Sounds faulty i think.I'd get the phone freezing for a few seconds before it responded, but that was lag.

Aww man that would suck if it was... That's the only problem I have!

WendyB87 said:
Aww man that would suck if it was... That's the only problem I have!
Click to expand...
Click to collapse
i had this problem..it would lock up..freeze and i had to wait for a min or so to come back to life..a hard reset fixed it

Oh okay! That is good to know...I guess I'll be trying that soon

I have the same issue as well.
It's not that the screen "stopped" working. It works, except there's no update on the screen. As if the entire phone is frozen, but it's still giving me haptic feedbacks. Except, actions aren't being reflected on the UI; things like, tapping home navbar button, doesn't take me to the launcher, tapping up/back doesn't take me to the previous screen. I can lock/unlock the phone, but I'd return to the whatever page of the app that corresponds to the back/up command I previously made.
I think, the easiest way I can summarize this is that the OS stopped doing visual updates, while there's actually stuff going on despite that "stuck" screen.

[Q] Galaxy Nexus Sleep of Death

Problem: Cannot turn on the screen by pressing the power button sometimes. The screen is black or very dim, I cannot tell. One can see nothing on the screen, and it doesn’t accept any touch input, either. The phone still rings if there’s an incoming call. If this happens, the following several presses (about 10 - 20) on the power button will probably lead to a reboot. The “screen auto-rotate” and the proximity sensor may fail after the reboot, but will recover after a manual reboot.
Frequency: Fewer with higher Rom version. About once per day for 4.3.
Other description:
 The problem frequently happens when I just take the phone outside my house/office, and seldom happens when the phone just stays somewhere.
 The problem seems to be irrelevant to the remaining battery capacity or the uptime, but it never happens when charging.
 The problem seems to be irrelevant to the Apps installed.
 The problem seldom happens in the first 3-4 days after flashing a Rom, but happens more and more frequently as time goes by. My guess is some cache is stuffed by some trash, which causes the problem. The phone may be fine as long as the trash can be cleaned up on a regular basis.
 I manually reboot my phone at most every two days.
Solutions tried, but don’t work
 Flashing official ROMs 4.0.4, 4.1.1, 4.1.2, 4.2.2 and 4.3 following the procedure “adb reboot bootloader; fastboot oem unlock; flash-all; fastboot oem lock”, without google wallet, not rooted.
 Turning off the auto-brightness control, as suggested by some post on the Internet.

Does it look like it goes to standby normally or does the screen show gibberish and then turns off?
Sent from my Galaxy Nexus using XDA Free mobile app

Thymo said:
Does it look like it goes to standby normally or does the screen show gibberish and then turns off?
Sent from my Galaxy Nexus using XDA Free mobile app
Click to expand...
Click to collapse
Thank you very much.
I think it's standing-by normally even through the screen is black (or very dim, I cannot tell), since it rings if there's an incoming call. I can see nothing from the screen, and I don't think the screen accepts any touch input, either.
Does this answer your question? Thank you.

Bobby_yan said:
Thank you very much.
I think it's standing-by normally even through the screen is black (or very dim, I cannot tell), since it rings if there's an incoming call. I can see nothing from the screen, and I don't think the screen accepts any touch input, either.
Does this answer your question? Thank you.
Click to expand...
Click to collapse
Thanks.
Was just asking if you had gibberish yes or no. In that case i've got a different issue than you (Suspecting f*cked GPU).
Have you tried a different ROM/Kernel combination maybe it's related to that.

Thymo said:
Thanks.
Was just asking if you had gibberish yes or no. In that case i've got a different issue than you (Suspecting f*cked GPU).
Have you tried a different ROM/Kernel combination maybe it's related to that.
Click to expand...
Click to collapse
No.
No, I just tried the official ROMs. Any suggestion?

Perhaps it's just busy in the background and running low on RAM. Give LagFix a try. Sorry can't link atm as I am on mobile...

eKeith said:
Perhaps it's just busy in the background and running low on RAM. Give LagFix a try. Sorry can't link atm as I am on mobile...
Click to expand...
Click to collapse
Thanks a lot. I'm trying it.

Bobby_yan said:
Thanks a lot. I'm trying it.
Click to expand...
Click to collapse
LagFix does NOT help in my case. Any other suggestions? Thanks.

I've also had this blank screen with calls still ring issue for as long as I can remember, nearly 2.5 yrs.
I've always suspected it's my ROM and so I'd try out another ROM'S, BUT no other ROM works like how I'd like, so I always come back to my ROM.
It doesn't happen every single day, but it does happen very often.
I've tried using apps that auto reboot daily, but eventually this blank screen issue will return.
Unfortunately I can't seem to find any solution, so I just put up with it, it's like the 1 only flaw with my ROM.
&
Not to be at all rude, but I'm really glad op has had this issue from testing other versions of Android, cause then at least I know I don't need to give up my great tablet mode ROM.
LOL

I think I've finally found a work around for this screen of death.
Using Exposed, download/install this module/extension:
Disable Proximity
http://repo.xposed.info/module/com.mrchandler.disableprox
It does exactly what it's name is and ever since then I've not once had to remove my GN battery to work again because the screen went completely dead.

NVM
Screen still goes dead.
Anyone find an actual fix to this?

isajoo,
I had pretty much the same problems with my Galaxy Nexus running CyanogenMod 11 M12.
It got better by doing the following :
Blowing dry air in the earpiece… though the proximity sensor is clearly beside it. Can't do any harm though, I guess.
Settings/Applications/All/menu/Reset applications preferences (or whatever that's called in english) : that seemed to do a lot of good to my phone ! However, it's a very unsatisfactory answer on a technical point of view, as I still don't know WHAT was precisely needed. It's a "magic wand" solution for which I can't give an explanation.
Not specifically related, but greatly helped my phone in the responsiveness area : Trimmer (fstrim) (https://play.google.com/store/apps/details?id=com.fifthelement.trimmer), an updated version of LagFix that you may already know
Hope that helped !
(I wanted to try http://www.androidlegend.com/how-to-perform-proximity-sensor-calibration-on-any-samsung-phone/ as well, but apparently, /sys/class/sensors/proximity_sensor/prox_cal does not exist on my phone…)

[Q] Touch Key duration bug - lights stay on when set to stay off

I've a SM-T700 Tab S 8.4 running lollipop, and I've recently noticed a bug. I don't know if it's new since the lollipop upgrade, but I didn't notice it before.
I often use it to read in the dark, so I turn the brightness down and set the touch keys to never light up. However, after a while the lights come on and stay on until the setting is altered again.
Anyone else getting a similar issue?

Hi! I think it's a common bug. I have the same problem and read that many people have it.
I'm not aware of any permanent solution, so for now i keep mine at 1.5 seconds (I'd prefer them off, but thats the best I could find!)
PS: Sorry for my English!

No need to apologize. Your English is perfect.
Sent from my SM-N900V using XDA Free mobile app

If the problem's widespread, what devices/ROMs has it been seen on? Is it Galaxy-specific, I wonder.

Same issue here
rosyatrandom said:
I've a SM-T700 Tab S 8.4 running lollipop, and I've recently noticed a bug. I don't know if it's new since the lollipop upgrade, but I didn't notice it before.
[....]
Anyone else getting a similar issue?
Click to expand...
Click to collapse
Same problem here, only on mine the only way I've found to turn them off once they come on is to restart the device. What a hassle.

I have the same problem, regardless of what I set the duration to. It never did this under Kitkat.

Mythra said:
Same problem here, only on mine the only way I've found to turn them off once they come on is to restart the device. What a hassle.
Click to expand...
Click to collapse
yeah same here, only fix I found was a reboot. think I flashed the Brazil version.

nismofreak said:
yeah same here, only fix I found was a reboot. think I flashed the Brazil version.
Click to expand...
Click to collapse
Hi! I have same problem with Brazil version also.
Might it be related to that version only?

pantezuma said:
Hi! I have same problem with Brazil version also.
Might it be related to that version only?
Click to expand...
Click to collapse
could possibly be... anyone with this issue not on the Brazil version?

Yes, same problem here with my new Samsung Tab S 8.4 SM-T700, stock 5.0.2
Putting it to 1.5 secs is the best I can do for now. I'm looking around on the app store to see if there's a different app to control this that might work (aside, the Galaxy S6 came with no way to turn these off and you have to use a separate app to do this).

nismofreak said:
could possibly be... anyone with this issue not on the Brazil version?
Click to expand...
Click to collapse
Mine is stock US (or whatever the official region is).

Mythra said:
Same problem here, only on mine the only way I've found to turn them off once they come on is to restart the device. What a hassle.
Click to expand...
Click to collapse
No need to restart/reboot, for me if I change the setting to something else (e.g., 1.5 secs etc) and then back to OFF it'll work for a while before it stays on permanently again.

levon9 said:
No need to restart/reboot, for me if I change the setting to something else (e.g., 1.5 secs etc) and then back to OFF it'll work for a while before it stays on permanently again.
Click to expand...
Click to collapse
I tried that with mine... won't work: no matter what I change the setting to they just stay on until I restart the device. I created a ticket with Samsung support last week, but no response from them so far.

Ah .. ok, that's interesting, thanks for sharing. Hopefully Samsung will issue a fix in the next update. Nice tablet otherwise.

I'm sure most, if not all, knew this, but it is definitely a software issue. I flashed CM 12.1 the other day and the touch keys stay off. Perhaps someone can look into the stock firmware and see if there's a way we can fix it ourselves?

Hey guys, I've had the same bug since upgrading to Lollipop and I found out it seems to be a bug with the power saving mode. If I turn it off, the bug stops happening. I'm also testing power saving mode with the "turn key lights off" option unchecked, and it seems to be working ok. This option can be found under settings, power saving, restrict performance.
I'll keep testing. If anyone tests it too please reply with your findings!

giancian said:
Hey guys, I've had the same bug since upgrading to Lollipop and I found out it seems to be a bug with the power saving mode. If I turn it off, the bug stops happening. I'm also testing power saving mode with the "turn key lights off" option unchecked, and it seems to be working ok. This option can be found under settings, power saving, restrict performance.
I'll keep testing. If anyone tests it too please reply with your findings!
Click to expand...
Click to collapse
I never use power saving mode, because I'm almost always near a charger, and I also had this issue. I don't think power saving mode has much to do with it. Not directly, at least.

Hi, I'm not using power savings mode, but have the same problem, so I'm not sure this mode is a factor (at least a sole factor).

Hi to all.
Somenone previously suggested this app:
https://play.google.com/store/apps/details?id=com.notquiteinsane.galaxybuttonlights&hl=en
I've been using it with and without power saving mode for 4 days and so far so good.

pantezuma said:
Hi to all.
Somenone previously suggested this app:
https://play.google.com/store/apps/details?id=com.notquiteinsane.galaxybuttonlights&hl=en
I've been using it with and without power saving mode for 4 days and so far so good.
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Hi,
I suggested this app earlier upstream, however, it ended up not working for me. Not sure how it's working for you, but happy it is. (FWIW, I never use power savings)