[Bug 108355] Civilization VI - Artifacts in mouse cursor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108355

--- Comment #10 from Michel Dänzer <michel at daenzer.net> ---
Created attachment 142088
  --> https://bugs.freedesktop.org/attachment.cgi?id=142088&action=edit
Detect and fix up non-premultiplied cursor  data

(In reply to Hadrien Nilsson from comment #9)
> I looked at the log and "amdgpu_drv.so" 18.1 was not loaded as it's not ABI
> compatible with the rest of my Xorg installation.

That's because the driver was compiled for Xorg 1.20, whereas you're using
1.19. Simply recompiling the newer driver against your local xserver-xorg-dev
should overcome this.

Anyway, given the symptoms, the fundamental issue here is probably that the
game uses incorrect cursor data without premultiplied alpha.

However, I guess we need to be robust against this. Can you try the attached
xf86-video-amdgpu patch?

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