I downgraded the nvidia driver to nvidia-current-updates (304). The system locked-up again while playing videos but this time around it came back for a few seconds. While the mouse and keyboard were not responsive, I was able to see the video move rapidly and my conky scripts were updating for the same period. The logs above are from the session immediately following the hard reset. The only interesting info in the logs is reproproduced below:
Feb 18 10:10:37 rsk4 kernel: [ 459.762852] ohci-pci 0000:00:13.0: HC died; cleaning up Feb 18 10:10:37 rsk4 kernel: [ 459.972980] clocksource: timekeeping watchdog on CPU2: Marking clocksource 'tsc' as unstable because the skew is too large: Feb 18 10:10:37 rsk4 kernel: [ 459.972984] clocksource: 'hpet' wd_now: 2cf1234a wd_last: 882f4fcf mask: ffffffff Feb 18 10:10:37 rsk4 kernel: [ 459.972986] clocksource: 'tsc' cs_now: 1c80b7be591 cs_last: 1c797b32b32 mask: ffffffffffffffff Feb 18 10:10:37 rsk4 kernel: [ 459.973151] clocksource: Switched to clocksource hpet Feb 18 10:10:38 rsk4 kernel: [ 460.648506] snd_hda_intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x10a0000 Feb 18 10:10:38 rsk4 kernel: [ 460.648515] snd_hda_intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x10a0000 Feb 18 10:10:38 rsk4 kernel: [ 460.648831] snd_hda_intel 0000:00:14.2: spurious response 0x800:0x0, last cmd=0x10a0000 Feb 18 10:10:38 rsk4 kernel: [ 460.649108] snd_hda_intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x10a0000 Feb 18 10:11:54 rsk4 gnome-session[6450]: message repeated 95 times: [ ERROR: Error querying target relations] Feb 18 10:11:56 rsk4 ntpd[1673]: Soliciting pool server 132.163.4.101 Feb 18 10:11:57 rsk4 ntpd[1673]: Soliciting pool server 138.236.128.112 Feb 18 10:11:58 rsk4 ntpd[1673]: Soliciting pool server 199.241.184.162 Feb 18 10:12:04 rsk4 gnome-session[6450]: ERROR: Error querying target relations -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1665911 Title: Linux 4.8 hangs system when playing video To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1665911/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
