First downgrading the xorg-server-* packages to 7.5~3ubuntu4 did not help.
Then downgrading libc6 (and friends) to 2.11~20100104-0ubuntu2 didn't help.
Finally, simultaneously downgrading libdrm to 2.4.14-1ubuntu2 and the mesa packages to 7.6.1~rc3-1ubuntu2 DOES fix the problem. I suspect libdrm since that actually contains radeon-related changes, mesa was only to fix broken packages.
Should this be moved to libdrm and is there anything I could do to help debug this further?
After looking at recently updated packages at https:/ /lists. ubuntu. com/archives/ lucid-changes/ 2010-January/ date.html I tried downgrading a few (by manually downloading debs and installing all at once with dpkg -i)
First downgrading the xorg-server-* packages to 7.5~3ubuntu4 did not help.
Then downgrading libc6 (and friends) to 2.11~20100104- 0ubuntu2 didn't help.
Finally, simultaneously downgrading libdrm to 2.4.14-1ubuntu2 and the mesa packages to 7.6.1~rc3-1ubuntu2 DOES fix the problem. I suspect libdrm since that actually contains radeon-related changes, mesa was only to fix broken packages.
Should this be moved to libdrm and is there anything I could do to help debug this further?