[Bug 96767] ThinkPad T450: RetroArch refuses to go back into windowed mode after fullscreen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96767

--- Comment #41 from Diego Viola <diego.viola at gmail.com> ---
(In reply to Diego Viola from comment #40)
> (In reply to Chris Wilson from comment #39)
> > (In reply to Diego Viola from comment #38)
> > > Yes, I remember now. I still think xf86-video-intel+sna+dri2 shouldn't give
> > > different results than modesetting+glamor+dri2 for this use case, although I
> > > still get this bug even with Linux 4.8.1 and I've been bisecting from Linux
> > > 4.0 and up.
> > 
> > If modesetting implements similar levels of DRI2 functionality (that seems
> > unlikely), then it will also hit the same bugs that have been uncovered so
> > far.
> 
> I see, interesting.
> 
> I've just tried reproducing this bug on Debian 8.6 and I couldn't reproduce
> it there, I made sure to remove the modesetting driver and use the -intel
> one, restart X, and make sure compositing was disabled on Xfce.
> 
> I noticed it uses a much older kernel version: 3.16.
> 
> Would you be interested to see a bisect between Linux 3.16 and 4.0 perhaps?
> 
> Thanks.

BTW, I tested this on the dualcore machine I originally reported this on, I
couldn't boot Debian on my T450 for some reason. I plan on doing the bisect on
both machines.

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