[kde] [Bug 465115] Firefox hangs when windows are placed in different virtual desktops

[Vishal Subramanyam]

https://bugs.kde.org/show_bug.cgi?id=465115

--- Comment #2 from Vishal Subramanyam <vishalsubramanyam at outlook.com> ---
I have narrowed down this issue to NVIDIA-specific hardware acceleration in
Firefox on Wayland. Happens only when I use NVIDIA as my primary GPU.
This is related to hardware acceleration. 
This issue does NOT occur in the following situations.
1. When I disable hardware acceleration in Firefox
2. When I use hardware acceleration but with the primary GPU set as Intel
integrated graphics.

When I set NVIDIA as my primary GPU by using the following env variable:
KWIN_DRM_DEVICES="/dev/dri/card1:/dev/dri/card0",
this issue occurs.

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