Comme=
nt # 40
on bug 10617=
5
from Michel D=C3=A4nzer
For the DC guys: We've now confirmed that the problem is due t=
o some bad
interaction between page flips and HW cursor updates.
(In reply to tempel.julian from co=
mment #37)
> I think software cursor would also be unusable e=
ven if it left pageflipping
> on. It causes nasty issues like flickering cursor or other visual corr=
uption.
Yeah, that's why xf86-video-amdgpu disables DRI page flipping while there's=
an
SW cursor, as I said in comment 31=
. Note that the modesetting driver doesn't do
this, allowing users to run into those issues.
(In reply to grmat from comment #3=
9)
> (In reply to Michel D=C3=A4nzer from comment #34)
> >=20
> > Right, you'd have to disable TearFree as well.
>=20
> Then I think the logs should represent that, even when the manpage tel=
ls me
> that tearfree is using page flipping. If i set explicitly to off, and=
the
> log says so, I expect it to be off.
Patches or at least specific suggestions welcome, but I'm afraid it's trick=
y to
describe all possible interactions concisely and clearly. DRI page flipping=
and
TearFree are mostly separate things, but they use the same kernel page flip=
ping
mechanism, which is what matters for this issue.