[Nouveau] Regression in 5.15 in nouveau

[Dan Moulding]

On 04.12.21 17:40, Stefan Fritsch wrote:
> Hi,
> 
> when updating from 5.14 to 5.15 on a system with NVIDIA GP108 [GeForce
> GT 1030] (NV138) and Ryzen 9 3900XT using kde/plasma on X (not wayland),
> there is a regression: There is now some annoying black flickering in
> some applications, for example thunderbird, firefox, or mpv. It mostly
> happens when scrolling or when playing video. Only the window of the
> application flickers, not the whole screen. But the flickering is not
> limited to the scrolled area: for example in firefox the url and
> bookmark bars flicker, too, not only the web site. I have bisected the
> issue to this commit:
> 
> commit 3e1ad79bf66165bdb2baca3989f9227939241f11 (HEAD)

I have been experiencing this same issue since switching to 5.15. I
can confirm that reverting the above mentioned commit fixes the issue
for me. I'm on GP104 hardware (GeForce GTX 1070), also running KDE
Plasma on X.

Cheers,

-- Dan