https://bugs.kde.org/show_bug.cgi?id=459211
Bug ID: 459211
Summary: Screen turns black when connecting HDMI, only cursor
remains
Classification: Unclassified
Product: KScreen
Version: master
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: m...@ratijas.tk
Target Milestone: ---
Created attachment 152100
--> https://bugs.kde.org/attachment.cgi?id=152100&action=edit
kscreen-kwin black screen with HDMI
SUMMARY
Sometimes when connecting an external monitor or TV via HDMI I get a black
screen where only cursor is visible (and it's changing as if it's really
hovering over different UI elements!)
Today it's consistent. Every time I plug in HDMI cable, the screen turns black
like that. But when I disconnect it, everything returns to normal — except
windows' geometries: they mostly become when thin vertically.
I collected journal logs with KWin debugging enabled.
STEPS TO REPRODUCE
1. Connect HDMI cable.
2. Feel despair.
3. Disconnect HDMI cable.
OBSERVED RESULT
Black screen when connected, messed up window layout after disconnection.
EXPECTED RESULT
Second monitor is connected as normal.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE: git-master
Qt Version: 5.15.6
Kernel Version: 5.19.8-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970M/PCIe/SSE2
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: G752VT
System Version: 1.0
ADDITIONAL INFORMATION
(attaching detailed graphics information in second post, because bugzilla)
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