https://bugs.kde.org/show_bug.cgi?id=502806
Bug ID: 502806
Summary: Windows aren’t moved and restored properly when (un-)
plugging USB-C dock with a HDMI monitor plugged to it
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: xrandr
Assignee: kwin-bugs-n...@kde.org
Reporter: a...@ariasuni.eu
Target Milestone: ---
SUMMARY
I use Plasma with two monitor: the builtin one from my laptop, and an external
monitor, plugged via HDMI to a USB-C dock.
KWin don’t behave correctly with regards to moving windows and sizing when
plugging and unplugging the dock.
STEPS TO REPRODUCE
1. Two screens, with one plugged with HDMI through an USB-C dock
2. Two Firefox windows (and other maximized windows)
3. Unplug the USB-C dock
4. Plug back the USB-C dock
OBSERVED RESULT
When unplugging the USB-C dock, the Firefox window (it’s fine for other
applications) displayed on the external monitor stay stuck on the ghost screen
and I can’t move it back to the builtin screen (tried shortcuts to move windows
to other screens, using actions in the contextual menu of the panel task
manager). Only way to access the stuck windows I found is to plug back a
monitor.
When plugging the USB-C dock back, some maximized windows are restored with the
size covering the entire screen, so they go under the (non-floating) panel, as
if the panel wasn’t there when the windows were moved back to the external
screen.
EXPECTED RESULT
When unplugging the USB-C dock, the Firefox window is moved to the builtin
screen.
When plugging the USB-C dock back, the maximized windows are restored to the
correct size.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.9.0
Kernel Version: 6.14.2-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
Memory: 13.5 Gio of RAM
Graphics Processor: AMD Radeon Vega 10 Graphics
Manufacturer: LENOVO
Product Name: 20NFCTO1WW
System Version: ThinkPad E595
ADDITIONAL INFORMATION
The USB-C dock I’m using is a Thinkpad (40AY)
(https://www.lenovo.com/fr/fr/p/accessories-and-software/docking/docking-usb-docks/40ay0090eu).
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