Nouveau - Feb 2021 - [PATCH 2/3] drm/nouveau/kms/nv50-: Report max cursor size to userspace

On Wed, Feb 24, 2021 at 11:35 AM Alex Riesen
<alexander.riesen at cetitec.com> wrote:
> Ilia Mirkin, Wed, Feb 24, 2021 16:10:57 +0100:
> > The fact that you're getting lines with modetest means there's
> > something wrong with 256x256. What if you do 128x128 -- does that work
> > OK?
>
> Yes. Unfortunately in both cases.
Just to be crystal clear -- are you saying that 128x128 works or does
not work? (You said "yes", which would imply it works OK, but then you
said both cases, which would imply doesn't work since 256x256 doesn't
work?)

Thanks,

  -ilia

Ilia Mirkin, Wed, Feb 24, 2021 17:48:39 +0100:
> On Wed, Feb 24, 2021 at 11:35 AM Alex Riesen <alexander.riesen at
cetitec.com> wrote:
> > Ilia Mirkin, Wed, Feb 24, 2021 16:10:57 +0100:
> > > The fact that you're getting lines with modetest means
there's
> > > something wrong with 256x256. What if you do 128x128 -- does that
work
> > > OK?
> >
> > Yes. Unfortunately in both cases.
> 
> Just to be crystal clear -- are you saying that 128x128 works or does
> not work? (You said "yes", which would imply it works OK, but
then you
> said both cases, which would imply doesn't work since 256x256
doesn't
> work?)
Modetest with 128x128 cursor works. Without damage to the cursor: modetest
shows normal cursor in vanilla v5.11. Modetest also shows normal cursor in
vanilla v5.11 with the commit reverted.

Which is unfortunate, as the only way to see the damaged cursor is to start
the X environment with modesetting DDX driver.