Bug 418773

Summary: Unlocking after suspend doesn't work - only black screen with mouse cursor
Product: [Plasma] kscreenlocker Reporter: elman
Component: generalAssignee: Plasma Bugs List <plasma-bugs>
Status: RESOLVED DUPLICATE    
Severity: normal CC: bhush94, bugseforuns, nate
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description elman 2020-03-12 09:23:58 UTC 
SUMMARY
My setup is notebook (closed lid, screen disabled) + docking station + 2 external monitors. Sometimes after suspending notebook when I return to it, I only see black screen and mouse cursor. There is not way to unlock the session.

I've seen several hints, but none of them works. I tried blindly typing password and pressing enter. I tried switching do tty2 and back to tty1. 

What I didn't try yet is 'loginctl unlock-sessions' in different tty. Will report on that later.

Only thing I can do is either reset my notebook or kill X with Ctrl+Alt+Backspace.

STEPS TO REPRODUCE
This is random bahaviour, so can't reproduce it every time. Sometimes I see this behaviour also when I disconnect notebook from docking station and then open the lid.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Manjaro
KDE Plasma Version: 5.18.3
KDE Frameworks Version: 5.67.0
Qt Version: 5.14.1
Comment 1 Patrick Silva 2020-03-12 10:33:13 UTC 

*** This bug has been marked as a duplicate of bug 418764 ***
Comment 2 Nate Graham 2020-04-15 03:11:53 UTC 

*** This bug has been marked as a duplicate of bug 347772 ***