I can't reproduce this bug on Debian Testing (Wheezy) – which really confuses me…
-> Xorg 1:7.6+9, xserver-xorg-video-radeon 1:6.14.2-2.
Maybe this information could help to narrow this bug down.
(please note that I *didn't* test this on wheezy before; in comment #12 I just mixed up the codenames "Squeeze" and "Wheezy" – sorry for the confusion)
I can't reproduce this bug on Debian Testing (Wheezy) – which really confuses me… xorg-video- radeon 1:6.14.2-2.
-> Xorg 1:7.6+9, xserver-
Maybe this information could help to narrow this bug down.
(please note that I *didn't* test this on wheezy before; in comment #12 I just mixed up the codenames "Squeeze" and "Wheezy" – sorry for the confusion)