improved swap/MSC-wait scheduling in DPMS-off state

[Michel Dänzer]

On Die, 2013-04-30 at 17:34 +0200, Michel Dänzer wrote: 
> On Die, 2013-04-30 at 10:31 -0400, Ilija Hadzic wrote: 
> > On Tue, Apr 30, 2013 at 5:16 AM, Michel Dänzer <michel at daenzer.net>
> > wrote:
> >         On Son, 2013-04-28 at 16:07 -0400, Ilija Hadzic wrote:
> >         >
> >         > The end result is that regardless in which state the display
> >         is, the
> >         > application sees the events (time and sequence numbers) that
> >         progress
> >         > as if the CRTC is running and the events happen at right
> >         time points
> >         > on the grid determined by the vlbanks (real or
> >         interpolated).
> >         
> >         
> >         Indeed, looks like DPMS off no longer has any effect on piglit
> >         results. :) Thanks for working on this.
> >         
> > 
> > 
> > Forgive me if this question is going to make me look dumb, but given
> > that piglit is a rendering test suite, the behavior you are seeing is
> > expected. In other words, you are not implying that something is
> > wrong, are you?
> 
> Indeed, I'm not. piglit has a few GLX tests, some of which could
> previously fail when the monitor was in DPMS off state. Your series
> fixes that. 

Hmm, now I've seen some issues with some glx/GLX_OML_sync_control/ tests
again even with your patches. Maybe the CRTC went off while those tests
were running, and that isn't handled quite correctly yet. Can you look
into that? 

-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer