radeon 8500 mergedfb flicker

[Michel Dänzer]

On Thu, 2004-12-02 at 14:25 -0500, Alex Deucher wrote:
> On Thu, 02 Dec 2004 12:34:54 -0500, Michel Dänzer <michel at daenzer.net> wrote:
> > On Wed, 2004-12-01 at 21:12 -0500, Alex Deucher wrote:
> > > On Thu, 2 Dec 2004 11:05:19 +1100, Dave Airlie <airlied at gmail.com> wrote:
> > > > 
> > > > Also when I run a 3D app both screen revert to clone mode - wierd....
> > >
> > > turn off pageflipping.  it doesn't really work with dualhead.
> > 
> > I've been scratching my head over the MergedFB AdjustFrame functions but
> > don't see how both CRTC offsets can end up being the same in
> > radeon_cp_dispatch_flip(). Maybe the AdjustFrame wrapping is wrong wrt
> > the generic DRI wrapper? Just a guess...
> 
> I know I went through the same thing when I wrote mergedfb initially. 
> perhaps something to do with vblanks?  

What do you mean? The flips aren't vsync'd.

> what's weird is that it used to work ok if crtc1 was at a lower offset 
> than crtc2.  apparently that stopped working after the dri->xorg merge.

Maybe at the end of RADEONMergePointerMoved(), you should call the
wrapped PointerMoved function or at least pScrn->AdjustFrame() instead
of RADEONDoAdjustFrame() directly?


-- 
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer