https://bugs.kde.org/show_bug.cgi?id=509669

--- Comment #49 from fililip <[email protected]> ---
For the record, this is the patch I tried: https://pastebin.com/zJVrPegy

And this is the stack trace I get: https://pastebin.com/xMRZeTPS

Looks like Qt5 tries to do something with the mouse pointer(?) and then its
OpenGL texture can't be created properly? Should this even crash on a race
condition? Can this even be a race condition? It worked fine on the 6.5 branch
regardless of the app used.

I'll try bisecting between 6.4.90 and 6.5.90 to see if a backend change could
have introduced this, if not, then this is probably a Qt 6.11 beta bug (Arch
ships Qt 6.11 in kde-unstable) or something completely different.

If this ends up unable to be worked around anymore, could I ask for assistance
with figuring out how to repaint the cursor in the connect() callback in
composite(), possibly by ditching the OpenGL rendering method and painting the
pointer using the CPU somehow?

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