[Adding some lists to cc] On Fri, Nov 23, 2012 at 8:12 AM, <tim.meusel at online-mail.biz> wrote: > Am 2012-11-22 17:03, schrieb Daniel Vetter: > >> On Thu, Nov 22, 2012 at 4:58 PM, <tim.meusel at online-mail.biz> wrote: >>> >>> I think I found a bug in the 1915 driver. I'm not sure if you're the >>> right >>> person to talk to, anyway here's the link to my initial ubuntu bug report >>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1070690 >>> >>> As I noticed later, this seems to be a bug in the mainline kernel and not >>> only the ubuntu versions. It would be awesome if you could help me. Let >>> me >>> know if you need further information. >> >> >> Well, you're booting with nomodeset, which then kills the driver >> because we seem to not properly handle a cleanup cornercase. Please >> retest on 3.6 and if that's broken, too on the drm-intel-experimental >> ppa. And please also try booting without nomodeset, things should >> work. >> -Daniel > > > > Hi Daniel, > I tested several mainline kernel from: > http://kernel.ubuntu.com/~kernel-ppa/mainline/ > every 3.6.X has this bug with nomodeset: > [ 9.037828] [drm] Initialized drm 1.1.0 20060810 > [ 9.163336] [drm:drm_pci_agp_init] *ERROR* Cannot initialize the agpgart > module. That's not a bug - nomodeset simply does not work on your chipset - the only bug is that it OOPS'ed afterwards. > it seems to work without it: > root at Ubuntu-1210-quantal-64-minimal ~ # dmesg | grep drm > [ 10.710566] [drm] Initialized drm 1.1.0 20060810 > [ 10.830350] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). > [ 10.830351] [drm] Driver supports precise vblank timestamp query. > [ 10.897852] [drm] Enabling RC6 states: RC6 on, RC6p on, RC6pp off > [ 11.299615] fbcon: inteldrmfb (fb0) is primary device > [ 11.474424] fb0: inteldrmfb frame buffer device > [ 11.474425] drm: registered panic notifier > [ 11.474964] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on > minor 0 > root at Ubuntu-1210-quantal-64-minimal ~ # cat /proc/cmdline > BOOT_IMAGE=/vmlinuz-3.6.6-030606-generic > root=UUID=a62a7cbf-2e9d-4c42-94da-6b64ddc815f8 ro > crashkernel=384M-2G:64M,2G-:128M > root at Ubuntu-1210-quantal-64-minimal ~ # Nice, I think you should simply boot with kms enabled then ;-) > Are you talking about > kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-experimental/ ? the website > seems to be down, I will test these kernels when it works again. Yes. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
