[kde] [Bug 466238] Exiting full screen video playback with on a multi-monitor setup with different scaling factors causes a freeze

[Rune]

https://bugs.kde.org/show_bug.cgi?id=466238

--- Comment #1 from Rune <rune.fritzsche at web.de> ---
(In reply to Rune from comment #0)
> SUMMARY
> 
> Having multiple screens with different scaling factors in the plasma wayland
> session makes it impossible to exit fullscreen video playback. The screen
> that played back the video becomes unusable, the second screen works fine.
> Graphical glitches can be observed on the primary screen when trying to exit
> the full screen playback.
> 
> 
> STEPS TO REPRODUCE
> 1. Set different scaling factors on two monitors.
> 2. Start playing back video in full screen mode (tried firefox (Youtube,
> Netflix) as well as VLC (local file).
> 3. Try exiting the playback.
> 
> OBSERVED RESULT
> 
> The screen becomes unresponsive and shows graphical artifacts.
> 
> EXPECTED RESULT
> 
> The video playback can be exited normally.
> 
> SOFTWARE/OS VERSIONS
> Linux/KDE Plasma: Arch Linux 6.1.12-arch
> (available in About System)
> KDE Plasma Version: 5.27.1
> KDE Frameworks Version: 5.103.0
> Qt Version: 5.15.8
> 
> ADDITIONAL INFORMATION
> 
> AMD GPU with open source drivers, though proprietary OpenGL driver is
> installed. Hardware acceleration is enabled.

The graphical glitches also occur with non-mixed scaling factors. It is
possible to exit fullscreen though. Graphical artifafcts on newly drawn
elements persist until reboot.

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