I got many errors in the dmesg log, after upgrade to 2.6.28-9.29.
root@jaunty# dmesg |grep drm
[ 54.113090] [drm] Initialized drm 1.1.0 20060810
[ 54.157005] [drm] Initialized i915 1.6.0 20080730 on minor 0
[ 54.163231] [drm:i915_getparam] *ERROR* Unknown parameter 6
[ 55.267287] [drm:i915_getparam] *ERROR* Unknown parameter 6
[ 73.376502] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[ 413.364710] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[ 417.776700] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[ 518.028692] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0
[ 781.018880] [drm:i915_getparam] *ERROR* Unknown parameter 6
[ 7402.782181] [drm:i915_getparam] *ERROR* Unknown parameter 6
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
MachineType: SAMSUNG ELECTRONICS CO., LTD. NC10
NonfreeKernelModules: ath_hal
Package: linux-image-2.6.28-9-generic 2.6.28-9.29
ProcCmdLine: root=UUID=9ceb4b9e-7677-4031-a6da-1996e3542ca2 ro vga=789 quiet
ProcEnviron:
LANG=fr_FR.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-9.29-generic
SourcePackage: linux
I can confirm this with the jaunty beta 6, also on a Samsung NC10