On Thu, 2009-04-30 at 08:39 -0700, Jesse Barnes wrote:
> On Thu, 30 Apr 2009 08:08:36 +0200
> Michel Dänzer <mic...@daenzer.net> wrote:
> 
> > On Wed, 2009-04-29 at 18:02 -0700, Jesse Barnes wrote:
> > > On Wed, 29 Apr 2009 15:09:33 -0700
> > > Jesse Barnes <jbar...@virtuousgeek.org> wrote:
> > > > I'm still working through mutlihead issues on the kernel side; the
> > > > flip waits should wait for *both* vblank events before completing
> > > > the flip.  But other than that, I'm pretty happy with things.
> > > 
> > > This incremental set fixes up the multihead handling and adds swap
> > > interval support as a bonus.  It's nice to see flipping & no
> > > tearing on two heads at once!
> > 
> > Is there a mechanism for choosing the CRTC to sync to in ambiguous
> > cases? E.g. either a driconf option (allowing per application
> > configuration) or a RandR property (allowing global configuration)
> > would be nice I think.
> 
> The kernel is supposed to handle it and reject flips on disabled CRTCs
> so I was hoping it wouldn't be necessary.

That's not an ambiguous case. Ambiguous cases are when parts of the
window are visible on both CRTCs.

> But the 2D driver controls which CRTC id is passed to the kernel, so it
> could be exposed as an xrandr option possibly.

Sounds good.


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

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