...since the kernel from jaunty seems to be not new enough regarding drm and radeon, and as my pre-poster already wrote, I built drm.ko and radeon.ko modules using instructions http://wiki.x.org/wiki/radeonhd%3Ar6xx_r7xx_branch, and now it works.
[ 1.425733] (II) RADEON(0): [dri] Found DRI library version 1.3.0 and kernel module version 1.29.0
...
[ 2.364626] (II) RADEON(0): Acceleration enabled
Performance seems much better now. Will jaunty's kernel be updated to ship these bits? :-)
...since the kernel from jaunty seems to be not new enough regarding drm and radeon, and as my pre-poster already wrote, I built drm.ko and radeon.ko modules using instructions http:// wiki.x. org/wiki/ radeonhd% 3Ar6xx_ r7xx_branch, and now it works.
[ 1.425733] (II) RADEON(0): [dri] Found DRI library version 1.3.0 and kernel module version 1.29.0
...
[ 2.364626] (II) RADEON(0): Acceleration enabled
Performance seems much better now. Will jaunty's kernel be updated to ship these bits? :-)