This looks to be the same problem as bug #556856 - can you check if the drm-next kernel team PPA build fixes this? You can find these kernels here: http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-next/2010-04-09-lucid
This looks to be the same problem as bug #556856 - can you check if the drm-next kernel team PPA build fixes this? You can find these kernels here: http:// kernel. ubuntu. com/~kernel- ppa/mainline/ drm-next/ 2010-04- 09-lucid