radeon driver: checkpoint

[Benjamin Herrenschmidt]

On Sun, 2006-03-19 at 15:32 +0100, Matthieu Herrb wrote:

> > The, the mergedfb log looks like everything is ok. Do you end up with a
> > very large virtual area (sized like both screens) but instead of having
> > the second screen showing what's on the "other" side, it mirrors and
> > both are panning when the mouse hits the border ?
> 
> I don't get panning. The mouse "disappears" on the invisible other side.

That's CRTC2_OFFSET containing a wrong value.. strange. That worked fine
during my tests.

> > Regarding the Xinerama issue, I'm not sure what's up yet, best is if you
> > could take register dumps of the working 6.8.2 setup vs. the non-working
> > 6.9 setup...
> 
> Sure, what tool can I use to take those dumps ?

You can try gate.crashing.org/~benh/radeontool.c, a hacked version that
can read/write various card registers. Call it as root doing:

  radeontool regmatch *

Ben.