https://bugs.kde.org/show_bug.cgi?id=489294
Bug ID: 489294
Summary: Fullscreen applications do not output video after
restarting the Monitor
Classification: Plasma
Product: kwin
Version: 6.1.1
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: dirleyjor...@gmail.com
Target Milestone: ---
SUMMARY
Monitor reports no signal after being turned off and on again when any
fullscreen (borderless) application (Wayland or XWayland) is in focus. Hitting
the super key to bring up the application launcher brings back picture and
switching focus to a window with a border is also fine. Switching focus back to
a borderless application gives no signal to the monitor again.
Restarting the desktop solves this until the monitor is restarted.
This is common for me as my OLED monitor needs to do a pixel refresh every so
often which involves turning it off and on again.
STEPS TO REPRODUCE
1. Open a fullscreen application (Steam games, YouTube fullscreen, etc.)
2. Turn the monitor off and on again
OBSERVED RESULT
The picture will not return as long as the fullscreen app is in focus.
EXPECTED RESULT
The picture returns displaying the fullscreen app as it was when the monitor
was turned off.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: CachyOS (Plasma Wayland)
(available in About System)
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
ADDITIONAL INFORMATION
Nvidia proprietary driver with a single monitor hooked up via DisplayPort.
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