https://bugs.kde.org/show_bug.cgi?id=496932
Bug ID: 496932
Summary: Display layout always wrong after wake up from sleep
Classification: Plasma
Product: KScreen
Version: 6.2.3
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: mmvgro...@gmail.com
Target Milestone: ---
SUMMARY
When my laptop wakes up from sleep with an external display attached, the
layout is always wrong.
The display is configured so the external display is on the right of the
built-in display.
After waking up, the external display is set up to mirror the built-in one. I
have to go to the display config and fix it manually on every wake up.
Once woken up, I've tried the following in case that gives any hints:
- disconnecting and connecting the external monitor does not fix things; in
fact, it changes the resolution to match the external monitor's, and the
built-in monitor now doesn't show the whole screen.
- if I fix the display config manually, disconnecting the external monitor and
connecting it back results in the expected layout, but windows that were
previously on the external monitor are not moved.
STEPS TO REPRODUCE
1. Have an external monitor connected and set up on the right of the built-in
laptop monitor
2. Lock screen and put system to sleep (for me: close laptop lid)
3. Wake system up (for me: open the lid)
OBSERVED RESULT
External monitor is a mirror of the built-in monitor.
EXPECTED RESULT
External monitor is on the right of the built-in monitor.
SOFTWARE/OS VERSIONS
Operating System: KDE neon 6.2
KDE Plasma Version: 6.2.3
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.0
Kernel Version: 6.8.0-49-generic (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-8650U CPU @ 1.90GHz
Memory: 31.1 GiB of RAM
Graphics Processor: Mesa Intel® UHD Graphics 620
Manufacturer: LENOVO
Product Name: 20L50018US
System Version: ThinkPad T480
ADDITIONAL INFORMATION
I'm pretty sure this worked on a previous version of the 6.x line, but I don't
remember exactly when it broke. I think it was when I upgraded from Neon 22.04
to Neon 24.04.
Let me know if there's any more information I can gather to help with this.
After the system wakes up, it also becomes hit by bug 484323; I need to run
`kwin --replace` to fix it until next time the system goes to sleep, or
external monitors are connected / disconnected.
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