Fwd: 01f05940a9a75e11a2be64993c44ad8dd06e6e26 causes Wayland servers to flicker in non-gl virtio QEMU cards

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Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> It seems that commit 01f05940a9a75e11a2be64993c44ad8dd06e6e26 introduced an issue impacting wlroots and Weston (possibly others) on QEMU with the virtio card. happens on QEMU, and it happens in virt-manager when I do NOT enable GL. (When GL is ENABLED it seems to be fine oddly)
> 
> It introduces odd flickering, Weston's desktop shell flashes when a new window opens, wlroots also acts odd.
> This is QEMU 8.0.4
> 
> I have narrowed it down to 01f05940a9a75e11a2be64993c44ad8dd06e6e26. Reverting the commit (it still reverts cleanly), and the flicking goes away on a rebuild and this is on Linux 6.6.

See Bugzilla for the full thread.

Anyway, I'm adding this regression to regzbot:

#regzbot introduced: 01f05940a9a75e https://bugzilla.kernel.org/show_bug.cgi?id=218115
#regzbot title: fb damage clips property enablement causes Wayland non-GL flickering on QEMU

Thanks.

[1]: https://bugzilla.kernel.org/show_bug.cgi?id=218115

-- 
An old man doll... just what I always wanted! - Clara



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