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[DaleEMoore <DaleEMoore@xxxxxxxxx>]

*** This bug is a duplicate of bug 431812 ***
    https://bugs.launchpad.net/bugs/431812

My fade-to-black issues was fixed by these improvements, thanks.

But I have a similar problem without the black. Screen frozen and no
response from any keyboard or mouse activity. ssh still active and the
tasks that were not tied to screen activity are still chugging along
fine.

/var/log/syslog has:

Nov 17 15:35:46 user-desktop kernel: [27120.768086] INFO: task i915/0:260 blocked for more than 120 seconds.
Nov 17 15:35:46 user-desktop kernel: [27120.768094] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Nov 17 15:35:46 user-desktop kernel: [27120.768099] i915/0        D c08145c0     0   260      2 0x00000000
Nov 17 15:35:46 user-desktop kernel: [27120.768109]  efb1ff04 00000046 e64fa000 c08145c0 efabe718 c08145c0 2d77d24b 00001782
Nov 17 15:35:46 user-desktop kernel: [27120.768122]  c08145c0 c08145c0 efabe718 c08145c0 00000000 00001782 c08145c0 e8732400
Nov 17 15:35:46 user-desktop kernel: [27120.768134]  efabe480 ef893814 ef893818 ffffffff efb1ff30 c056f776 c0748e80 ef89381c
Nov 17 15:35:46 user-desktop kernel: [27120.768147] Call Trace:
Nov 17 15:35:46 user-desktop kernel: [27120.768163]  [<c056f776>] __mutex_lock_slowpath+0xc6/0x130
Nov 17 15:35:46 user-desktop kernel: [27120.768169]  [<c056f690>] mutex_lock+0x20/0x40
Nov 17 15:35:46 user-desktop kernel: [27120.768207]  [<f8257c0a>] i915_gem_retire_work_handler+0x2a/0x70 [i915]
Nov 17 15:35:46 user-desktop kernel: [27120.768219]  [<c0157a7e>] run_workqueue+0x6e/0x140
Nov 17 15:35:46 user-desktop kernel: [27120.768236]  [<f8257be0>] ? i915_gem_retire_work_handler+0x0/0x70 [i915]
Nov 17 15:35:46 user-desktop kernel: [27120.768243]  [<c0157bd8>] worker_thread+0x88/0xe0
Nov 17 15:35:46 user-desktop kernel: [27120.768251]  [<c015c280>] ? autoremove_wake_function+0x0/0x40
Nov 17 15:35:46 user-desktop kernel: [27120.768257]  [<c0157b50>] ? worker_thread+0x0/0xe0
Nov 17 15:35:46 user-desktop kernel: [27120.768263]  [<c015bf8c>] kthread+0x7c/0x90
Nov 17 15:35:46 user-desktop kernel: [27120.768269]  [<c015bf10>] ? kthread+0x0/0x90
Nov 17 15:35:46 user-desktop kernel: [27120.768276]  [<c0104007>] kernel_thread_helper+0x7/0x10

May I provide other diagnostic information to help resolve this issue?

-- 
xorg deadlocked after screen fades to black
https://bugs.launchpad.net/bugs/395855
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