https://bugs.kde.org/show_bug.cgi?id=482462
Bug ID: 482462
Summary: Fullscreen applications freeze on input (Wayland)
after update to Neon 6.0
Classification: KDE Neon
Product: neon
Version: unspecified
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: neon-b...@kde.org
Reporter: k...@login.untbu.de
CC: j...@jriddell.org, neon-b...@kde.org, sit...@kde.org
Target Milestone: ---
SUMMARY
When switching any application to fullscreen or switching focus back to any
application that already is in fullscreen, everything freezes for two seconds
and my built-in monitor turns black until I focus any application that is not
in fullscreen. If the fullscreen application is on my build-in monitor,
everything works as expected. This only happens if I'm on Wayland, on X11 it
works fine (But I can't use X11 because my built-in screen is HiDPI and i need
to adjust scaling for each monitor).
STEPS TO REPRODUCE
1. Take Laptop with HiDPI monitor
2. Connect external FHD monitor
3. Play a youtube video in fullscreen on that monitor
OBSERVED RESULT
1. Everything freezes for two seconds when focusing browser
2. Build-in monitor turns black
EXPECTED RESULT
No freeze and no black monitor
SOFTWARE/OS VERSIONS
KDE Neon: 6.0
KDE Plasma Version: 6.0
KDE Frameworks Version: 6.0
Qt Version: 6.6.2
Graphics Platform: Wayland
ADDITIONAL INFORMATION
It's the same with and without nvidia drivers installed (version 535).
Build-in monitor: 3840x2160@60, scaling: 175%
External monitor: 1920x1080@60, scaling: 100%
Normally I have two external monitors connected and one time the problem were
gone after disconnecting the second monitor. But I didn't manage to reproduce
this.
It also happened once that changing the HiDPI monitor to FHD fixed the issue.
It doesn't happen on my second laptop with build-in FHD monitor.
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