https://bugs.kde.org/show_bug.cgi?id=426644
Bug ID: 426644
Summary: Screens go black / unresponsive after sleep or lock
Product: plasmashell
Version: master
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: kde...@agilob.net
CC: plasma-b...@kde.org
Target Milestone: 1.0
SUMMARY
Some screens go black and are unresponsive after screen is locked or computer
wakes up from sleep.
STEPS TO REPRODUCE
1. Lock screen (timeout?) or choose sleep option manually
2. Wait a moment
3. Login
4. Some screens are black or unresponsive, panel bar in in wrong location,
application bar doesn't display screens from current screen as it should
Fix, one of:
1. Go to display settings, move screens around and save, move screens to
original location and save again.
2. alt+f2 -> plasmashell --replace
When two option above fail:
3. Reboot
It started happening occasionally ~3 weeks ago.
EXPECTED RESULT
Operating System: Arch Linux
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
Kernel Version: 5.8.8-arch1-1
OS Type: 64-bit
Processors: 12 × AMD Ryzen 5 3600 6-Core Processor
Memory: 31.4 GiB of RAM
Graphics Processor: Radeon RX 570 Series
ADDITIONAL INFORMATION
More people reporting similar symptoms here
https://www.reddit.com/r/archlinux/comments/iuji67/kde_plasma_sddm_gets_black_screen_with_cursor/
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