https://bugs.kde.org/show_bug.cgi?id=492176
Fabian Knorr <ers.tr...@gmail.com> changed:
What |Removed |Added
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CC| |ers.tr...@gmail.com
--- Comment #3 from Fabian Knorr <ers.tr...@gmail.com> ---
I can reproduce this problem. When the external monitor turns off but the
laptop does not sleep, the monitor will not turn back on unless I disconnect
and reconnect it (or power cycle the dock, which is equivalent). This never
occurs with Gnome Wayland or sway on the same system.
Setup: AMD Radeon 780M, KWin 6.3.4, Arch Linux x86_64 Kernel 6.14.1 with the
amdgpu open source driver. Display is connected via DP over USB-C and a dock.
Oddly enough, the bug does not trigger every time, and sometimes a single
disconnect / reconnect is sufficient, sometimes not. I have not been able to
understand the exact pattern, but I'd say it occurs about half of the time the
monitor powers off, and half the time again a single disconnect / reconnect
fixes it.
While the external monitor is off, KDE still recognizes it as active.
Curiously, when I open the laptop screen, it will show two mouse pointers. I'm
attaching pictures of both. Also either the built-in or the external display
sometimes show artifacts in this state or after recovering from it, but I'm not
sure if it's related to this bug or if it's another minor driver issue.
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