On Wed, 25 Sep 2002, Bill Soudan wrote:

> http://www.xfree86.org/pipermail/xpert/2002-June/018208.html

Why changing the resolution to 24bpp 'solves' the problem:

xc/programs/Xserver/hw/xfree86/drivers/i810/i810_accel.c:

   /* There is a bit blt bug in 24 bpp.  This is a problem, but
      at least without the pixmap cache we can pass the test suite */
   if(pScrn->depth != 24)
      infoPtr->Flags |= PIXMAP_CACHE;

I believe this indicates to the Xserver that the driver can't do a pixmap 
cache, which has the same effect as enabling the XaaNoPixmapCache flag.

Maybe this is actually a hardware bug then (ugh)?  More pronounced at
24bpp but still exists at the other depths?  Maybe I'll remove the check
and try 24bpp with a pixmap cache just to see what happens...

Bill

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