https://bugs.freedesktop.org/show_bug.cgi?id=28955
--- Comment #15 from Giacomo Perale ghepeu@virgilio.it 2010-08-28 06:07:23 PDT --- (In reply to comment #14)
Scott, can you tell me what the "latest components" are exactly? Mesa git master HEAD and xorg-server-1.9.0 on an Mobility X1400 (r500) give the exact same effect you describe on my machine here. r300 "classic" is fine.
It works here too. Are you using xf86-video-ati from git? There were a few commits lately who could be related to this bug.