Started this thread just to have idea about different versions of black screen bugs. Do we all have a specific definition or everybody has different experience and termed it as a black screen bug.
For me, when I used Paolo & Rome kernel with Adfad's N1 ROM, my screen went black whenever I tried to unlock and this was 'black screen bug' (for me).
hit button to wake phone to unlock screen laggs for 5-10 sec, with live wallpaper 2 sec.
when i get an incoming call..screens black, sometimes touching it lets me see whos calling.
when in call, i pull phone away from ear to see screen, ie call waiting, use keypad,ect. black screen, again touching it sometimes brings it to life.
those would be my 'BLACK SCREEN BUG" term assumptions
myawan said:
Started this thread just to have idea about different versions of black screen bugs. Do we all have a specific definition or everybody has different experience and termed it as a black screen bug.
For me, when I used Paolo & Rome kernel with Adfad's N1 ROM, my screen went black whenever I tried to unlock and this was 'black screen bug' (for me).
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Click to collapse
An easy way to recreate it is to simply turn your phone off and on real press power button the second it goes black press it again it will stay black when it is actually on
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Hey guys,
got my new s2 yesterday. But experienced a strange effect when waking up the phone from standby (black screen) by clicking the home button - when the phone then goes into lock screen for a short time. the point is, before the lock screen appears (after clicking the button), the display first gets grey/slighty lighted (for a real short time) and not till then the lock screen appears. it's sth like an intermediate step (for a trickle of a second) before the the lock screen appears. it seems as if the display have to lighten up first a bit...not really bright. as if it's dimming up..
how is that with yours? as i remember, my previous s2 went into the lockscreen directly (of course with the usual delay).
you can see this behaviour the easiest when you're in a darker environment.
thanks for your feedback!
btw. fw is kg1 with root-kernel. but already tested other fws..
flo
That's the way it is. No firmware has fixed the issue. Some users say in the latest KG1 the problem is gone but some says not. So don't worry.
u know what i mean? i dont mean the delay..im speaking of that little "pre-flashing" in the display...but its no real flashing cause its not very bright.
checked it again right now. that pre-flashing has some vertical stripes in it which descend to the final lock screen. looks like the lock screen pic would build up a little slower..
anybody know this effect?
xflowy said:
u know what i mean? i dont mean the delay..im speaking of that little "pre-flashing" in the display...but its no real flashing cause its not very bright.
Click to expand...
Click to collapse
Yep I know what you meant
so you have that stripes, too? would be nice to hear..
Hi all,
I'm not too sure if anyone else has ever experienced this but it is starting to annoy me.
When my screen dims after 1 minute and goes to the lock screen I'm able to press the 'home' button and the unlock screen appears but I'm not able to do anything.
Its almost as if my devices jams and I have to press buttons to get it to come back.
I've reinstalled my device and this doesn't happen.
This happens during a call when the screen dims when its near my ear and I take my phone away from my ear the screen doesn't come on and it jams
Please - your help will be greatly appreciated
just swipe unlock it ? or use smart stay
Aimara said:
just swipe unlock it ? or use smart stay
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Click to collapse
I wish that was the issue.
My smartstay is on.
When the device's screen turns off the 2 issues happen:-
1. You press the home button to turn the screen on and the phone goes into the pattern lock screen - when i try do my pattern it doesn't pick anything up almost as if the screen has frozen and I have to wait 1 minute for the screen to go off and do the same process and hope it works.
2. I'm in a call and the screen is supposed to light up after removing it from my hear however it stays black. I have to lay the phone down, wait 1 minute and press the home button and hopefully the screen comes up and hopefully it isn't jammed
try this see if it works https://play.google.com/store/apps/details?id=com.mobint.locker
Hey Aimara,
It didn't work.. It almost seems like the phone jams i.e. there is no RAM left or something
Check your running apps, and could be too many apps running on background using up ram, try to freeze some unwanted apps
I have no issues unlocking my stock Sprint GS3 as you describe. Like some other have mentioned, maybe free up some internal RAM by moving some apps or data to SD storage?
I think it might be caused by CPU tuner and the governors? I noticed when my battery was low it would get stuck on the unlock screen.
Hopefully with my changes it works
Sent from my GT-I9300 using xda app-developers app
I've been experiencing for some time now some random freezes when trying to face-unlock the phone. When pushing the power button to wake the phone, it displays the unlock screen but the box in the screen where your face (or whatever the front camera catches) blacks out, while the rest of the screen is normal (I can see the clock, the notification bar and the emergency call), also the leds for back and menu light up. And the phone justs stays like that, all the leds lighted up and the screen on. The home button doesn't work and the power button only works if I hold it down (it powers down / restarts the phone).
This has happened to my phone from some time ago, its purely random and it always happens when I try to unlock the phone. I haven't had any issues while using the phone nor strange bootloops or sudden reboots. I'm currently on stock XXEMB5 with Speedmod Kernel k2-13 and some apps removed, mainly yahoo widgets and some Samsung apps (I think I just removed all the hubs: game hub, social hub, etc...).
I red the bad eMMs symptoms, but it doesn't seem to be the same. If I had to guess, I would say its something with the camera, but right now I don't know for sure... Anyone has any idea where could be the problem?
Favourite culprit would be a non-standard kernel, wipe the phone and return to fully stock to test.
Your collection of mods and custom changes to rom are probably unique, if it doesn't freeze when stock then add changes one at a time until it happens again.
My S2 boots up fine (screen very bright and animation color not natural) after finishing boot the soft keys lights up but the screen goes black. When i press the home button the screen just flickers, shows the screen for a split second then goes black.Sometimes after many attempts pressing the power button it wakes but screen at full brightness and color is not natural. When i try to press the screen brightness to adjust it goes black immediately.
What i have tried so far, bought a new LCD screen and replace but problem persists. So its not a LCD problem. It was running stock ICS so i flash stock JB after wiping, no help. Root with Philz kernel but when i go to recovery screen goes black so i try Speedmod kernel with CWM recovery and the screen shows the Recovery menu I try to flash a custom rom (can't remember which one) but it won't boot up stuck at splash screen.I even flash GB and ICS stock still no luck.
The phone works fine calls can still get through, download mode screen and recovery screen ok. I actually have not use this phone for a year but the last time i use use it was working fine.
Google all the different Samsung device if anyone has this problem but no one seem to have the problem that i have so maybe if anyone knows or suggest anything else which i haven't tried.
Thanks for viewing
I have found the root of my problem, the damn brightness control in settings is not working. Brightness is at full, unable to set to auto or manually dim the screen.
Screen will only wake with black background. Have to tear apart the phone and figure whats wrong
Hello,
Yesterday I have unlocked my phone with my finger print (like I always do) and it took about 5-6 seconds for the screen to show something. The backlight turned on rather quickly but the screen remained black. After the screen turned on, it had a bad case of screen retention, the colors were also darker and I could not use the buttons from the bottom of the screen. A reboot solved all this problems.
Also, sometimes when I turn on the screen, it quickly goes dark and the slowly comes back to the initial state. During this time I cannot use the touch screen. It is like it does the wake up of the screen all over again.
I think this is a software issue (I have V20C on H850) and it might be related to the always on display. Also, all of these problems happened when I woke my phone using only the finger print (not pressing the button or knocking on the screen).
Did anything like this happen to you?