[Intel-gfx] screen freeze with 5.2-rc6 Dell XPS-13 skylake i915

[James Bottomley]

On Thu, 2019-07-11 at 16:40 -0700, James Bottomley wrote:
> On Thu, 2019-07-11 at 23:28 +0000, Souza, Jose wrote:
> > On Fri, 2019-07-12 at 01:03 +0200, Paul Bolle wrote:
> > > James Bottomley schreef op do 11-07-2019 om 15:38 [-0700]:
> > > > On Thu, 2019-07-11 at 22:26 +0000, Souza, Jose wrote:
> > > > > It eventually comes back from screen freeze? Like moving the
> > > > > mouse or typing brings it back?
> > > > 
> > > > No, it seems to be frozen for all time (at least until I got
> > > > bored waiting, which was probably 20 minutes).  Even if I
> > > > reboot the machine, the current screen state stays until the
> > > > system powers off.
> > > 
> > > As I mentioned earlier, a suspend/resume cycle unfreezes the
> > > screen.
> > > 
> > > And I seem to remember that, if the gnome screen-locking
> > > eventually kicks in, unlocking the screen still works, as the
> > > screen then isn't frozen anymore.
> > > 
> > > Thanks,
> > 
> > Thanks for all the information Paul.
> > 
> > Could test with the patch attached?
> 
> Applied and running with it now.

It has survived 6h without manifesting the regression.  Starting again
to try a whole day.

James