Problem with ati driver at 2560x1600

Alex Deucher alexdeucher at
Sun May 3 14:04:37 PDT 2009

On Sun, May 3, 2009 at 12:20 PM, Wil Reichert <wil.reichert at> wrote:
> Seems I'm getting some wierd issue where both text and graphics (i.e.
> fonts, window decorations, etc) are pixelated & blocky at 2560x1600.
> Drpoping the resolution to 1920x1200 makes everything fine.  I've
> tried both 6.12.2 and git master of xf86-video-ati, both have the same
> issue.    Tried various windows managers, all have the same problem.
> I got a screenshot via gimp to show the problem, but it looked fine.
> Attached is my x log.

Are you sure your card supports dual link dvi?  Not all r5xx cards are
wired up for dual-link dvi support.  1920x1200 is still within the
bounds of single link dvi while 2560x1600 requires dual-link.


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