Freeze occured at 02:57:07
Aug 21 02:57:05 Fusewood kernel: snd_hda_codec_hdmi hdaudioC1D0: HDMI: invalid ELD data byte 3
[...unrelated]
Aug 21 02:59:59 Fusewood kernel: INFO: task nvidia-modeset:779 blocked for more than 120 seconds.
Aug 21 02:59:59 Fusewood kernel:       Tainted: P           OE    4.15.0-32-generic #35-Ubuntu
Aug 21 02:59:59 Fusewood kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 21 02:59:59 Fusewood kernel: nvidia-modeset  D    0   779      2 0x80000000
Aug 21 02:59:59 Fusewood kernel: Call Trace:
Aug 21 02:59:59 Fusewood kernel:  __schedule+0x291/0x8a0
Aug 21 02:59:59 Fusewood kernel:  schedule+0x2c/0x80
Aug 21 02:59:59 Fusewood kernel:  schedule_timeout+0x1cf/0x350
Aug 21 02:59:59 Fusewood kernel:  ? schedule_timeout+0x1cf/0x350
Aug 21 02:59:59 Fusewood kernel:  ? ttwu_do_activate+0x77/0x80
Aug 21 02:59:59 Fusewood kernel:  __down+0x91/0xe0
Aug 21 02:59:59 Fusewood kernel:  down+0x41/0x50
Aug 21 02:59:59 Fusewood kernel:  ? down+0x41/0x50
Aug 21 02:59:59 Fusewood kernel:  nvkms_kthread_q_callback+0x65/0xe0 [nvidia_modeset]
Aug 21 02:59:59 Fusewood kernel:  _main_loop+0x76/0x140 [nvidia]
Aug 21 02:59:59 Fusewood kernel:  kthread+0x121/0x140
Aug 21 02:59:59 Fusewood kernel:  ? _raw_q_schedule+0x80/0x80 [nvidia]
Aug 21 02:59:59 Fusewood kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Aug 21 02:59:59 Fusewood kernel:  ? do_syscall_64+0x73/0x130
Aug 21 02:59:59 Fusewood kernel:  ? SyS_exit_group+0x14/0x20
Aug 21 02:59:59 Fusewood kernel:  ret_from_fork+0x35/0x40
Aug 21 03:02:00 Fusewood kernel: INFO: task nvidia-modeset:779 blocked for more than 120 seconds.
Aug 21 03:02:00 Fusewood kernel:       Tainted: P           OE    4.15.0-32-generic #35-Ubuntu
Aug 21 03:02:00 Fusewood kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 21 03:02:00 Fusewood kernel: nvidia-modeset  D    0   779      2 0x80000000
Aug 21 03:02:00 Fusewood kernel: Call Trace:
Aug 21 03:02:00 Fusewood kernel:  __schedule+0x291/0x8a0
Aug 21 03:02:00 Fusewood kernel:  schedule+0x2c/0x80
Aug 21 03:02:00 Fusewood kernel:  schedule_timeout+0x1cf/0x350
Aug 21 03:02:00 Fusewood kernel:  ? schedule_timeout+0x1cf/0x350
Aug 21 03:02:00 Fusewood kernel:  ? ttwu_do_activate+0x77/0x80
Aug 21 03:02:00 Fusewood kernel:  __down+0x91/0xe0
Aug 21 03:02:00 Fusewood kernel:  down+0x41/0x50
Aug 21 03:02:00 Fusewood kernel:  ? down+0x41/0x50
Aug 21 03:02:00 Fusewood kernel:  nvkms_kthread_q_callback+0x65/0xe0 [nvidia_modeset]
Aug 21 03:02:00 Fusewood kernel:  _main_loop+0x76/0x140 [nvidia]
Aug 21 03:02:00 Fusewood kernel:  kthread+0x121/0x140
Aug 21 03:02:00 Fusewood kernel:  ? _raw_q_schedule+0x80/0x80 [nvidia]
Aug 21 03:02:00 Fusewood kernel:  ? kthread_create_worker_on_cpu+0x70/0x70
Aug 21 03:02:00 Fusewood kernel:  ? do_syscall_64+0x73/0x130
Aug 21 03:02:00 Fusewood kernel:  ? SyS_exit_group+0x14/0x20
Aug 21 03:02:00 Fusewood kernel:  ret_from_fork+0x35/0x40