From additional logs tarball -> syslog:
Jan  7 16:11:20 ubuntu ubiquity[7196]: debconffilter_done: ubiquity.components.plugininstall (current: None)
Jan  7 16:11:20 ubuntu ubiquity[7196]: Reverting lockdown of the desktop environment.
Jan  7 16:15:20 ubuntu kernel: [ 2049.152080] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:15:20 ubuntu kernel: [ 2049.152087] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:15:20 ubuntu kernel: [ 2049.152091] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:15:20 ubuntu kernel: [ 2049.152100]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:15:20 ubuntu kernel: [ 2049.152109]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:15:20 ubuntu kernel: [ 2049.152117]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:15:20 ubuntu kernel: [ 2049.152125] Call Trace:
Jan  7 16:15:20 ubuntu kernel: [ 2049.152139]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:15:20 ubuntu kernel: [ 2049.152196]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152204]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:15:20 ubuntu kernel: [ 2049.152236]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152268]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152300]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152332]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152363]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152389]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152412]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152440]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:15:20 ubuntu kernel: [ 2049.152449]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:15:20 ubuntu kernel: [ 2049.152455]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:15:20 ubuntu kernel: [ 2049.152463]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:17:01 ubuntu CRON[31885]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
Jan  7 16:17:20 ubuntu kernel: [ 2169.152131] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:17:20 ubuntu kernel: [ 2169.152141] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:17:20 ubuntu kernel: [ 2169.152148] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:17:20 ubuntu kernel: [ 2169.152160]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:17:20 ubuntu kernel: [ 2169.152174]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:17:20 ubuntu kernel: [ 2169.152185]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:17:20 ubuntu kernel: [ 2169.152197] Call Trace:
Jan  7 16:17:20 ubuntu kernel: [ 2169.152216]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:17:20 ubuntu kernel: [ 2169.152290]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152306]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:17:20 ubuntu kernel: [ 2169.152352]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152398]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152445]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152492]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152536]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152574]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152609]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152650]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:17:20 ubuntu kernel: [ 2169.152666]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:17:20 ubuntu kernel: [ 2169.152679]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:17:20 ubuntu kernel: [ 2169.152692]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:19:20 ubuntu kernel: [ 2289.152083] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:19:20 ubuntu kernel: [ 2289.152090] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:19:20 ubuntu kernel: [ 2289.152094] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:19:20 ubuntu kernel: [ 2289.152103]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:19:20 ubuntu kernel: [ 2289.152112]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:19:20 ubuntu kernel: [ 2289.152120]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:19:20 ubuntu kernel: [ 2289.152128] Call Trace:
Jan  7 16:19:20 ubuntu kernel: [ 2289.152141]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:19:20 ubuntu kernel: [ 2289.152198]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152207]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:19:20 ubuntu kernel: [ 2289.152239]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152271]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152303]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152335]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152366]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152392]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152415]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152443]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:19:20 ubuntu kernel: [ 2289.152452]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:19:20 ubuntu kernel: [ 2289.152459]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:19:20 ubuntu kernel: [ 2289.152466]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:21:20 ubuntu kernel: [ 2409.152080] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:21:20 ubuntu kernel: [ 2409.152087] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:21:20 ubuntu kernel: [ 2409.152092] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:21:20 ubuntu kernel: [ 2409.152100]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:21:20 ubuntu kernel: [ 2409.152109]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:21:20 ubuntu kernel: [ 2409.152117]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:21:20 ubuntu kernel: [ 2409.152125] Call Trace:
Jan  7 16:21:20 ubuntu kernel: [ 2409.152139]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:21:20 ubuntu kernel: [ 2409.152196]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152205]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:21:20 ubuntu kernel: [ 2409.152236]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152269]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152300]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152333]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152364]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152390]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152413]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152441]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:21:20 ubuntu kernel: [ 2409.152450]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:21:20 ubuntu kernel: [ 2409.152456]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:21:20 ubuntu kernel: [ 2409.152464]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:23:20 ubuntu kernel: [ 2529.152083] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:23:20 ubuntu kernel: [ 2529.152090] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:23:20 ubuntu kernel: [ 2529.152094] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:23:20 ubuntu kernel: [ 2529.152103]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:23:20 ubuntu kernel: [ 2529.152112]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:23:20 ubuntu kernel: [ 2529.152120]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:23:20 ubuntu kernel: [ 2529.152128] Call Trace:
Jan  7 16:23:20 ubuntu kernel: [ 2529.152142]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:23:20 ubuntu kernel: [ 2529.152199]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152207]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:23:20 ubuntu kernel: [ 2529.152239]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152271]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152303]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152335]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152367]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152393]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152416]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152443]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:23:20 ubuntu kernel: [ 2529.152452]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:23:20 ubuntu kernel: [ 2529.152459]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:23:20 ubuntu kernel: [ 2529.152466]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:25:20 ubuntu kernel: [ 2649.152082] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:25:20 ubuntu kernel: [ 2649.152090] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:25:20 ubuntu kernel: [ 2649.152094] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:25:20 ubuntu kernel: [ 2649.152103]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:25:20 ubuntu kernel: [ 2649.152112]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:25:20 ubuntu kernel: [ 2649.152120]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:25:20 ubuntu kernel: [ 2649.152128] Call Trace:
Jan  7 16:25:20 ubuntu kernel: [ 2649.152142]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:25:20 ubuntu kernel: [ 2649.152199]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152208]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:25:20 ubuntu kernel: [ 2649.152240]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152272]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152303]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152336]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152367]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152393]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152416]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152444]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:25:20 ubuntu kernel: [ 2649.152453]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:25:20 ubuntu kernel: [ 2649.152460]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:25:20 ubuntu kernel: [ 2649.152467]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:27:20 ubuntu kernel: [ 2769.152081] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:27:20 ubuntu kernel: [ 2769.152089] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:27:20 ubuntu kernel: [ 2769.152093] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:27:20 ubuntu kernel: [ 2769.152102]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:27:20 ubuntu kernel: [ 2769.152111]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:27:20 ubuntu kernel: [ 2769.152119]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:27:20 ubuntu kernel: [ 2769.152127] Call Trace:
Jan  7 16:27:20 ubuntu kernel: [ 2769.152141]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:27:20 ubuntu kernel: [ 2769.152198]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152207]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:27:20 ubuntu kernel: [ 2769.152239]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152271]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152302]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152335]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152366]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152392]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152415]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152443]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:27:20 ubuntu kernel: [ 2769.152452]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:27:20 ubuntu kernel: [ 2769.152458]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:27:20 ubuntu kernel: [ 2769.152466]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:29:20 ubuntu kernel: [ 2889.152082] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:29:20 ubuntu kernel: [ 2889.152089] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:29:20 ubuntu kernel: [ 2889.152093] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:29:20 ubuntu kernel: [ 2889.152102]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:29:20 ubuntu kernel: [ 2889.152111]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:29:20 ubuntu kernel: [ 2889.152119]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:29:20 ubuntu kernel: [ 2889.152127] Call Trace:
Jan  7 16:29:20 ubuntu kernel: [ 2889.152141]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:29:20 ubuntu kernel: [ 2889.152198]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152207]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:29:20 ubuntu kernel: [ 2889.152238]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152271]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152302]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152334]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152366]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152392]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152415]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152443]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:29:20 ubuntu kernel: [ 2889.152452]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:29:20 ubuntu kernel: [ 2889.152458]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:29:20 ubuntu kernel: [ 2889.152466]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:31:20 ubuntu kernel: [ 3009.152090] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:31:20 ubuntu kernel: [ 3009.152097] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:31:20 ubuntu kernel: [ 3009.152101] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:31:20 ubuntu kernel: [ 3009.152110]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:31:20 ubuntu kernel: [ 3009.152119]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:31:20 ubuntu kernel: [ 3009.152127]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:31:20 ubuntu kernel: [ 3009.152135] Call Trace:
Jan  7 16:31:20 ubuntu kernel: [ 3009.152149]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:31:20 ubuntu kernel: [ 3009.152206]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152215]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:31:20 ubuntu kernel: [ 3009.152246]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152278]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152310]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152342]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152374]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152399]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152423]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152450]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:31:20 ubuntu kernel: [ 3009.152459]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:31:20 ubuntu kernel: [ 3009.152466]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:31:20 ubuntu kernel: [ 3009.152473]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f
Jan  7 16:33:20 ubuntu kernel: [ 3129.152082] INFO: task Xorg:5770 blocked for more than 120 seconds.
Jan  7 16:33:20 ubuntu kernel: [ 3129.152089] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jan  7 16:33:20 ubuntu kernel: [ 3129.152094] Xorg            D ffff88007e293e40     0  5770   5758 0x00400004
Jan  7 16:33:20 ubuntu kernel: [ 3129.152102]  ffff880074c5bc60 0000000000000002 ffff880073e98000 ffff880074c5bfd8
Jan  7 16:33:20 ubuntu kernel: [ 3129.152111]  ffff880074c5bfd8 ffff880074c5bfd8 ffff88007ac21700 ffff880073e98000
Jan  7 16:33:20 ubuntu kernel: [ 3129.152119]  ffff880076b70800 ffff880076afae68 ffff88007a42e800 0000000000000001
Jan  7 16:33:20 ubuntu kernel: [ 3129.152127] Call Trace:
Jan  7 16:33:20 ubuntu kernel: [ 3129.152141]  [<ffffffff816a4ee9>] schedule+0x29/0x70
Jan  7 16:33:20 ubuntu kernel: [ 3129.152199]  [<ffffffffa00a3fe5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152207]  [<ffffffff8107c6c0>] ? finish_wait+0x80/0x80
Jan  7 16:33:20 ubuntu kernel: [ 3129.152239]  [<ffffffffa00a6647>] i9xx_crtc_disable+0x87/0x180 [i915]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152271]  [<ffffffffa00ab39f>] intel_crtc_update_dpms+0x6f/0xa0 [i915]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152303]  [<ffffffffa00ab47a>] intel_encoder_dpms+0x1a/0x30 [i915]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152335]  [<ffffffffa00ad248>] intel_connector_dpms+0x38/0x70 [i915]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152366]  [<ffffffffa001fdd0>] drm_mode_obj_set_property_ioctl+0x320/0x330 [drm]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152392]  [<ffffffffa001fe10>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152415]  [<ffffffffa000e553>] drm_ioctl+0x4d3/0x580 [drm]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152443]  [<ffffffffa001fde0>] ? drm_mode_obj_set_property_ioctl+0x330/0x330 [drm]
Jan  7 16:33:20 ubuntu kernel: [ 3129.152452]  [<ffffffff8119d0c9>] do_vfs_ioctl+0x99/0x590
Jan  7 16:33:20 ubuntu kernel: [ 3129.152459]  [<ffffffff8119d651>] sys_ioctl+0x91/0xb0
Jan  7 16:33:20 ubuntu kernel: [ 3129.152466]  [<ffffffff816ae75d>] system_call_fastpath+0x1a/0x1f