Display bug on stock but custom rom - G2 Q&A, Help & Troubleshooting

I experience two display bugs on stock but custom rom. Sometimes when I want to unlock screen there are no soft keys and I have to hit settings in notification panel first.
Second bug is when someone call me. It doesn´t occur everytime. So I have call ringing and there is just pure black screen, waiting, pushing - nothing helps.

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[Q] Screen won't turn on after a call ends

Hey,
I have a weird issue with the proximity sensor.
When I answer a call, the screen turns off as usual, however, every now and then the screen won't turn on after the call ends. The phone is still responsive however, and pressing the power button simply gives the lock sound.
I'm using CyanogenMod 6.1 Nightly 85 but I'm fairly certain it's happened before on other roms as well.
Any ideas?
That Problem I've sometimes too! Dont know to fix it...

[Q] call screen, dial pad problem

my dial pad is missing when calling someone. screen flashes and the call screen is lost. but the call is normal.
a few times phone opened automaticly coming call. I checked all call settings, there is no anormal setting, please help.
I tried all versions rom. 2.1, 2.2, omg, chayogen etc. now I'm using 2.1 update, kernel leshak 2.6.29, lk2.08.1 samdroid
I have the same problem!
I have the same problem. It started about 3 days ago for no reason. When you press the call button after entering a number, the screen goes black and all the three buttons at base (back, windows and search) are not responsive. There is nothing you can do...you can't hangup or enter numbers until the other party hangs up, unless you reboot. (You can still talk and make the call as normal).
I tried rebooting, took battery out and also did a factory reset but nothing has resolved the problem.
However, I did find a workaround: flip phone over so it goes into speaker mode and then the dialpad becomes visible and you can end the call or use number pad, but you have to keep phone flipped over all the while. Another workaround is to use a Bluetooth headset when making or answering calls. Then the dialpad is always visible as normal.
If anyone knows what to do please respond!
there is no hope (from xda)
I decided to go service...(its doesnt matter I tried al versions rom, I hate this phone, enough, I tired to reload rom vs.)

[Q] CM7 Nightly #71 - Input buttons not glowing

I have flashed CM7 Nightly #71. Post flash the Input buttons on the phone stopped glowing. Reboot does not help. Even boot time the input buttons are not initialised.
Any solution ?
Edit : Well played with Display setting -- With Screen brightness set to auto mode, input buttons behave normally, but take a while to glow once you unlock the screen. Well I am using brighness widget button in the power widget to change the brightness.
Edit : Well after playing multiple time now it behave normally across all brightness settings in the widget. I shall trying reboot and check if it initialises during boot time and post reboot behavior.
Edit : Input button don't initialise during boot. 25-30% brightness setting when changed to Auto brightness, Input buttons started glowing normally.
Is this a bug or input button are supposed to behave in this fashion ?
http://review.cyanogenmod.com/#change,5239
That commit messed it all up.
It remains lit for me all the time - but, your comment on the commit explains it all.
I am on #83 with new kernal flashed. Input button issue still remains. It does not come on for some settings while toggling battery settings in power widget notification.
I have installed miui camera from kevin2516. Sometimes camera sound goes after clicking few times. Along with camera sound, all sounds of the phone go off even calls. Only reboot resolves this?
Any solutions please?
The Sound Off issue is a known bug. It was *probably* solved in CM7 Stable versions, not sure though.
Move from #71 to #83 feel voice clarity during the call is reduced inspite of 4 bar full signal indication.
Feedback ---- #83 with new kernel, miui camera error with complete sound off couple if times

[Bug] [CM11] Dialer bug when making calls

This has been a consistent bug I've had over months of different versions of cm11. When I make or receive calls there is an option to show the dealer screen to press buttons during a call; this never loads properly the first time for me. It just shows a small part of the top of the dialer when I press the button to show it. If I press the back button and load it again it works fine. Does anyone else have this bug or know a fix? I've tried resetting the data for the phone app. Thanks.

[Q] Vibration / Haptic Feedback problem

Anybody help, please!
After flashing lollipop_theme_enabler via recovery and applying a theme, I've faced some strange missbehaviour from my G900F. It lost haptic feedback (no vibration) for back and recent keys, also samsung keyboard has no vibro at all. In addition pattern unlock now vibrates on every dot like it used to only for incorrect pattern. All the checkboxes and sliders (lockscreen, power saving, sound, notification, keyboard, accessability settings etc.) were carefully examined and had no effect on the described sympthoms.
Does anyone here knows how to fix the vibration problem?
PS Another little thing which makes me sad a bit is home button, for some reason I now have to push it twice to get to home screen.

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