On 2010-Dec-28 19:24:19 -0500, Understudy <list@understudy.net> wrote:
quoted text
>I downgraded the driver to xf86-video-ati-6.12.4_1 and it works. The 7.5 
>version has not worked for me.

It's possible that it's a problem with your xorg.conf - the Xorg project
loves making changes that break existing behaviour.  If you want to try
moving forward, you could post your xorg.conf and Xorg.0.log for both
video drivers.

-- 
Peter Jeremy