https://bugs.kde.org/show_bug.cgi?id=425046
Bug ID: 425046
Summary: kscreen does not init multiple screens properly the
first time
Product: KScreen
Version: git
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: k...@sdht.in
Target Milestone: ---
Created attachment 130664
--> https://bugs.kde.org/attachment.cgi?id=130664&action=edit
system and kscreen logs
SUMMARY
I have 2 external screens that I connect to my laptop using a USB-C dock.
1) When I connect the dock to the laptop, kscreen initially brings up plasma on
all screens as expected.
2) But within seconds, the external screens are deinitialized (output stops and
they turn off), while the laptop screen is frozen. I've to disconnect the dock
to get the laptop screen responding again.
3) When I connect the dock again, this time the external screens are not
initalized and I've to manually go and enable them from either the display
settings or using the xrandr cli, after which the multiscreen setup works
properly.
4) Sometimes, it takes multiple cycles of steps 1-3 to get the external screen
to work.
I've attached the system logs that shows 3-4 tries before I could get the
screens working.
All my plasma packages are git master. I'm willing to help debug this and try
out patches to finally resolve this annoying bug that I face almost everyday.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.19.80 (kscreen-git r1266.65f342d-1)
KDE Frameworks Version: 5.73.0
Qt Version: 5.15.0
Kernel Version: 5.7.11-arch1-1
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