Created attachment 33522 [details] dmesg output I apologize if I post this in wrong section. I'm a problem with all distro with kernel 2.6.35. On boot I receive this error: [ 10.355659] [drm:init_ring_common] *ERROR* render ring head not reset to zero ctl 00000000 head 02001000 tail 00000000 start 02001000 [ 10.355725] [drm:init_ring_common] *ERROR* render ring head forced to zero ctl 00000000 head 00000000 tail 00000000 start 02001000 When I use the system, mouse and keyboard "randomly freeze" and go very very slow for a short time (5-6 seconds). Is extremely annoying.:D I've tried with many distro like Ubuntu 10.10, Debian Sid, OpenSuse and more. Results are the same. I attach complete dmesg log and all my hardware info. I hope to be useful.
Created attachment 33532 [details] Hardware Info All work with kernel 2.6.32. Bugs on 2.6.35.
commit 6fd0d56e3bc1abfb237b8824261b613e21e77bc8 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sun Dec 5 20:42:33 2010 +0000 drm/i915/ringbuffer: Only print an error on the second attempt to reset head There's not much we can do here but hope for the best. However the first failure happens quite frequently and if often remedied by the second attempt to reset HEAD. So only print the error if that attempt also fails. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=19802 Reported-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org The slow keyboard/mouse is probably related to hotplug, which is a separately tracked bug, but the prolonged effect is unlikely to be related to the gfx hardware. Closing since the first bug you reported has been addressed. Please file separate bugs for separate issues.