Bug#449211: xserver-xorg-video-ati: no video sync when dri enabled

["Alex Deucher" <alexdeucher@gmail.com>]

On 11/6/07, Joachim Achtzehnter <joachim@kraut.ca> wrote:
> Alex Deucher wrote:
>
> > TMDS is kind of flaky on the 9200s in general.  If your bios has bad
> > tmds pll tables, you can try Option "DefaultTMDSPLL" "true" to use
> > the generic timings in the driver.  That may help.
>
> This didn't help.
>
> > Another option would be to try the various displaypriority options
> > (see the radeon man page).
>
> Both DisplayPriority "HIGH" and DisplayPriority "BIOS" seem to work. Is
> there any documentation of what these settings mean?

they adjust the display controller priority with respect to the memory
controller.  On some cards (especially cards with limited memory
bandwidth), you need to adjust it.

Alex