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[Kiwinote <kiwinote@xxxxxxxxx>]

Hi - sorry for losing track of this bug. The freezes persist in raring
with all the latest updates, so I'm reopening this bug. I've done a
little research and have managed to obtain a kernel log with
drm.debug=6. Perhaps this helps? If you need any other info please let
me know.

Feb  2 22:56:45 fourish kernel: [  721.108138] INFO: task Xorg:1059 blocked for more than 120 seconds.
Feb  2 22:56:45 fourish kernel: [  721.108157] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 22:56:45 fourish kernel: [  721.108167] Xorg            D f7400100     0  1059   1025 0x00400004
Feb  2 22:56:45 fourish kernel: [  721.108187]  cb4fdd54 00203086 e25d4ce0 f7400100 f7400100 cb4fdcf8 c19c2100 0d3071d7
Feb  2 22:56:45 fourish kernel: [  721.108217]  00000086 c19c2100 f7400100 f68599a0 00000001 00000001 c9f4a0c4 00000001
Feb  2 22:56:45 fourish kernel: [  721.108243]  00000000 c9e74400 000bdd3c c9e74c00 cb4fdd2c c103ce48 cb4fdd40 cb4fdd38
Feb  2 22:56:45 fourish kernel: [  721.108271] Call Trace:
Feb  2 22:56:45 fourish kernel: [  721.108303]  [<c103ce48>] ? default_spin_lock_flags+0x8/0x10
Feb  2 22:56:45 fourish kernel: [  721.108321]  [<c103ce48>] ? default_spin_lock_flags+0x8/0x10
Feb  2 22:56:45 fourish kernel: [  721.108339]  [<c16103ed>] ? _raw_spin_lock_irqsave+0x2d/0x40
Feb  2 22:56:45 fourish kernel: [  721.108355]  [<c160f533>] schedule+0x23/0x60
Feb  2 22:56:45 fourish kernel: [  721.108453]  [<f88d31d5>] intel_crtc_wait_for_pending_flips+0x55/0xa0 [i915]
Feb  2 22:56:45 fourish kernel: [  721.108471]  [<c106bc20>] ? finish_wait+0x70/0x70
Feb  2 22:56:45 fourish kernel: [  721.108550]  [<f88d597a>] i9xx_crtc_disable+0x6a/0x150 [i915]
Feb  2 22:56:45 fourish kernel: [  721.108632]  [<f88d9ede>] intel_crtc_update_dpms+0x5e/0x90 [i915]
Feb  2 22:56:45 fourish kernel: [  721.108712]  [<f88dfa56>] intel_crt_dpms+0x66/0xa0 [i915]
Feb  2 22:56:45 fourish kernel: [  721.108780]  [<f8653505>] drm_mode_obj_set_property_ioctl+0x385/0x3a0 [drm]
Feb  2 22:56:45 fourish kernel: [  721.108797]  [<c160e098>] ? mutex_lock+0x18/0x40
Feb  2 22:56:45 fourish kernel: [  721.108857]  [<f8653557>] drm_mode_connector_property_set_ioctl+0x37/0x50 [drm]
Feb  2 22:56:45 fourish kernel: [  721.108917]  [<f8653520>] ? drm_mode_obj_set_property_ioctl+0x3a0/0x3a0 [drm]
Feb  2 22:56:45 fourish kernel: [  721.108971]  [<f8643eda>] drm_ioctl+0x42a/0x490 [drm]
Feb  2 22:56:45 fourish kernel: [  721.109036]  [<f8653520>] ? drm_mode_obj_set_property_ioctl+0x3a0/0x3a0 [drm]
Feb  2 22:56:45 fourish kernel: [  721.109059]  [<c115f187>] ? do_sync_read+0x97/0xd0
Feb  2 22:56:45 fourish kernel: [  721.109114]  [<f8643ab0>] ? drm_copy_field+0x80/0x80 [drm]
Feb  2 22:56:45 fourish kernel: [  721.109131]  [<c116f0a0>] do_vfs_ioctl+0x80/0x580
Feb  2 22:56:45 fourish kernel: [  721.109149]  [<c109a0bb>] ? ktime_get_ts+0x4b/0x150
Feb  2 22:56:45 fourish kernel: [  721.109165]  [<c116f60b>] sys_ioctl+0x6b/0x80
Feb  2 22:56:45 fourish kernel: [  721.109182]  [<c161758d>] sysenter_do_call+0x12/0x28

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Expired => New

** Attachment added: "kernel.log"
   https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1048230/+attachment/3512626/+files/kernel.log

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https://bugs.launchpad.net/bugs/1048230

Title:
  display freezes

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