On Mon, Oct 21, 2002 at 11:46:56AM -0600, Jens Owen wrote:
> Ian Romanick wrote:
> > On Mon, Oct 21, 2002 at 10:06:13AM -0600, Jens Owen wrote:
> >>Would disabling the DRI when backingstore is enabled give the semantic
> >>consistency you're looking for? I don't have a problem with that,
> >>because 99.99% of the users don't need backing store enabled.
> >
> > I don't think that would help. I commented out the 'Load "dri"' and 'Load
> > "glx"' lines from my XF86Config file and got the same behavior.
>
> Apologies. When I saw your question originally posted to the dri-devel
> list, I assumped it was related to direct rendering.
I've done a bit more investigation, and I believe that this problem IS
related to changes in the ATI 2D driver that originated in the DRI tree (so
I'm only posting to dri-devel now). Here is the hardware / driver matrix
that I have tested:
Radeon DDR Radeon M6 Matrox G400 S3 Savage IX
XFree86-4.2.0-8
(from RedHat 7.3) Pass Pass Pass Pass
XFree86-4.2.0-72
(from RedHat 8.0) Pass Pass Pass Pass
DRI CVS Fail Fail Pass Pass
XFree86 CVS Fail Fail Pass Pass
I looked at the patches in both RedHat RPMs, and I couldn't find anything
that looked at all relevant. I did some more spelunking, and I came across
something too striking to ignore: all of the driver / hardware combinations
that fail are ones that page-flipping support in the 2D driver.
I'd like to discuss this in the dri-devel meeting today before we talk about
either the texmem branch or the fallback-query extension. :)
--
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