Re: i915 visual corruption

[coypu%sdf.org@localhost]

On Sat, Apr 13, 2019 at 12:02:16AM +0100, Chavdar Ivanov wrote:
> st
> 
> 
> На 2019-04-12 в 22:09, coypu%sdf.org@localhost написа:
> > On Fri, Apr 12, 2019 at 08:55:43PM +0100, Chavdar Ivanov wrote:
> >> Using the same Intel graphics, I had some perhaps similar effects on
> >> my laptop. In another thread it was suggested to set TearFree to True
> >> and AccelMethod to sna, which I did, the effects disappeared.
> > Yeah, we can make it the default (SNA is the default now, but w/o
> > tearfree, I think), but I suspect this effect isn't tearing, despite the
> > similar appearance.
> >
> > It should still cause tearing with two glmark2 windows (possibly even
> > worse), but it doesn't.
> FYI I just four simultaneous glmark2 runs without problems, even without
> the crash on exit. The test results were roughly what's expected - each
> one gave around 315 GLmark score; when I ran a single one, I got just
> under 1600.

It's weird to try it at all, but I am running with
LIBGL_ALWAYS_SOFTWARE=1

It'll do the same corruption as firefox sometimes does, but more
consistently and all the time.