I have same issue on Dell XPS 15 9560 with fresh installed 18.04. Might be related to https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics- drivers-390/+bug/1752053 ?
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1730680 Title: Shutdown failure in 17.10 with Nvidia Nouveau Driver Status in Linux: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: 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. --- ApportVersion: 2.20.7-0ubuntu3.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: donp 1203 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 17.10 InstallationDate: Installed on 2017-11-07 (0 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Beta amd64 (20171009) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 1bcf:2b8a Sunplus Innovation Technology Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. Inspiron 7559 Package: linux (not installed) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic root=UUID=aa8f7506-7293-4695-a16a-9ecaf014f632 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4 RelatedPackageVersions: linux-restricted-modules-4.13.0-16-generic N/A linux-backports-modules-4.13.0-16-generic N/A linux-firmware 1.169 Tags: wayland-session artful Uname: Linux 4.13.0-16-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/08/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.4 dmi.board.name: 0H87XC dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: Not Specified dmi.modalias: dmi:bvnDellInc.:bvr1.2.4:bd06/08/2017:svnDellInc.:pnInspiron7559:pvr1.2.4:rvnDellInc.:rn0H87XC:rvrA00:cvnDellInc.:ct10:cvrNotSpecified: dmi.product.family: Inspiron dmi.product.name: Inspiron 7559 dmi.product.version: 1.2.4 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1730680/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp