For searchability / ease, here is the dmesg content after failure: [176880.872168] INFO: task Xorg:2332 blocked for more than 120 seconds. [176880.872178] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [176880.872184] Xorg D ffff88013bc13f40 0 2332 2314 0x00400004 [176880.872194] ffff880120f2dc60 0000000000000082 ffff8801202dae80 ffff880120f2dfd8 [176880.872204] ffff880120f2dfd8 ffff880120f2dfd8 ffffffff81c15440 ffff8801202dae80 [176880.872212] ffff88012fb2d000 ffff88012f626268 ffff88012f221800 0000000000000000 [176880.872220] Call Trace: [176880.872239] [<ffffffff816ca029>] schedule+0x29/0x70 [176880.872322] [<ffffffffa01149f5>] intel_crtc_wait_for_pending_flips+0x75/0xd0 [i915] [176880.872333] [<ffffffff8107dc40>] ? finish_wait+0x80/0x80 [176880.872377] [<ffffffffa0117455>] i9xx_crtc_disable+0x65/0x1c0 [i915] [176880.872422] [<ffffffffa011c9ef>] intel_crtc_update_dpms+0x6f/0xa0 [i915] [176880.872467] [<ffffffffa011caca>] intel_encoder_dpms+0x1a/0x30 [i915] [176880.872511] [<ffffffffa011efa8>] intel_connector_dpms+0x38/0x70 [i915] [176880.872558] [<ffffffffa0015990>] drm_mode_obj_set_property_ioctl+0x330/0x340 [drm] [176880.872595] [<ffffffffa00159d0>] drm_mode_connector_property_set_ioctl+0x30/0x40 [drm] [176880.872628] [<ffffffffa0004559>] drm_ioctl+0x4e9/0x5b0 [drm] [176880.872668] [<ffffffffa00159a0>] ? drm_mode_obj_set_property_ioctl+0x340/0x340 [drm] [176880.872679] [<ffffffff8114a1bd>] ? kzfree+0x2d/0x30 [176880.872689] [<ffffffff8117c88d>] ? kfree+0xdd/0x110 [176880.872699] [<ffffffff81085c1a>] ? lg_local_unlock+0x1a/0x20 [176880.872707] [<ffffffff811b2e19>] ? mntput_no_expire+0x49/0x160 [176880.872716] [<ffffffff811a5969>] do_vfs_ioctl+0x99/0x570 [176880.872725] [<ffffffff811956be>] ? ____fput+0xe/0x10 [176880.872734] [<ffffffff8107a0dc>] ? task_work_run+0xac/0xe0 [176880.872741] [<ffffffff811a5ed1>] sys_ioctl+0x91/0xb0 [176880.872751] [<ffffffff816d37dd>] system_call_fastpath+0x1a/0x1f
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1182954 Title: [gen4 mesa] GPU hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1182954/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
