Public bug reported: The following errors display at shutdown. The system never shuts down and I must hold down the power key to turn the system off. The hardware is a Dell 7559 laptop with Intel / Nvidia Prime Graphics GTX 960M. The display driver in use is the Nouveau driver.
wlp5s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardare (-22) watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] INFO: rcu_sched self-detected stall on CPU $3...: (14999 ticks this GP) idle=e6e/1400000000001/0 softirq:55865/55865 fqs:7490 $ (t=15000 jiffies g=41392 c=41391 q=3432) watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] INFO: task systemd-timesyn:305 blocked for more than 120 seconds. Tained: G DEL 4.13-0-16-generic $19-ubuntu "echo 0 > /proc/sys/kernel/hung_task_timeout_sec" disables this message INFO: task systemd-timesyn:305 blocked for more than 120 seconds. Tained: G DEL 4.13-0-16-generic $19-ubuntu "echo 0 > /proc/sys/kernel/hung_task_timeout_sec" disables this message watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] watchdog: BUG: soft lockup - CPU#3 stuck for 22s! [plymouthd:4561] At this point I had to hold down the power key to turn off the system. ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1730680 Title: Shutdown failure in 17.10 with Nvidia Nouveau Driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1730680/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs