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[j^ <j@xxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

leaving the computer idle or sometimes waking up from suspend, the screen is black.
there is not way to turn it on again.  this is on a Lenovo S10e with Intel 945GME Express 

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)

logging in via ssh, dmesg shows this output:
[ 3360.740676] INFO: task Xorg:2526 blocked for more than 120 seconds.
[ 3360.740687] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 3360.740698] Xorg          D c0810320     0  2526   2499 0x00400000
[ 3360.740717]  f068de28 00003086 00000000 c0810320 f05c4df8 c0810320 1752b941 00000272
[ 3360.740745]  c0810320 c0810320 f05c4df8 c0810320 17523e4f 00000272 c0810320 f6a22000
[ 3360.740774]  f05c4b60 f69e6414 f69e6418 ffffffff f068de54 c056e8c6 00000000 f69e641c
[ 3360.740801] Call Trace:
[ 3360.740821]  [<c056e8c6>] __mutex_lock_slowpath+0xc6/0x130
[ 3360.740837]  [<c056e7e0>] mutex_lock+0x20/0x40
[ 3360.740895]  [<f82480ab>] i915_gem_throttle_ioctl+0x2b/0x70 [i915]
[ 3360.740915]  [<c01e18af>] ? do_sync_readv_writev+0xbf/0x100
[ 3360.740986]  [<f8146720>] drm_ioctl+0x180/0x360 [drm]
[ 3360.741047]  [<f8248080>] ? i915_gem_throttle_ioctl+0x0/0x70 [i915]
[ 3360.741068]  [<c03163d8>] ? copy_from_user+0x38/0x130
[ 3360.741087]  [<c02c62bf>] ? security_file_permission+0xf/0x20
[ 3360.741104]  [<c01e1b74>] ? rw_verify_area+0x64/0xe0
[ 3360.741120]  [<c01e1fc8>] ? rw_copy_check_uvector+0x78/0xf0
[ 3360.741138]  [<c0124678>] ? default_spin_lock_flags+0x8/0x10
[ 3360.741155]  [<c01598f5>] ? __remove_hrtimer+0x25/0x70
[ 3360.741172]  [<c015a183>] ? hrtimer_try_to_cancel+0x33/0x80
[ 3360.741190]  [<c0144111>] ? do_setitimer+0x251/0x320
[ 3360.741218]  [<c01ef7b3>] vfs_ioctl+0x73/0x90
[ 3360.741234]  [<c01efaa1>] do_vfs_ioctl+0x71/0x310
[ 3360.741251]  [<c014421b>] ? sys_setitimer+0x3b/0x90
[ 3360.741267]  [<c01efd9f>] sys_ioctl+0x5f/0x80
[ 3360.741283]  [<c010338c>] syscall_call+0x7/0xb

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

-- 
karmic screen goes black. no way to turn in on again
https://bugs.launchpad.net/bugs/396418
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