Here is a trancript of what I'm able to read on screen once the system hangs:
[ OK ] Stopped target System Initialization. [ OK ] Stopped target Encrypted Volumes. Stopping Cryptography Setup for cryptswapl... [ OK ] Stopped target Swap. Deactivating swap /dev/disk/by-uuid/a754e267-a770-4d4b-98a8-19ba7c9b9fd4... Stopping Load/Save Screen Backlight Brightness of backlight:intel_backlight... Stopping Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight... [ OK ] Stopped Apply Kernel Variables. [ OK ] Stopped Load Kernel Modules. Stopping Network Time Synchronization... [ OK ] Stopped Load/Save Screen Backlight Brightness of backlight:intel_backlight. [ OK ] Stopped Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight. [ OK ] Deactivated swap /dev/disk/by-uuid/a754eZ67-a770-4d4b-98a8-19ba7c9b9fd4. [ OK ] Deactivated swap /dev/disk/by-id/dm-uuid-CRYPT-PLAIN-cryptswapl. [ OK ] Deactivated swap /dev/disk/by-id/dm-name-cryptswapl. [ OK ] Deactivated swap /dev/dm-0. [FAILED] Stopped (with error) /dev/dm-0. [ OK ] Deactivated swap /dev/mapper/cryptswapl. [ OK ] Removed slice system-systemd\x2dbacklight.slice. [ OK ] Stopped Network Time Synchronization. [ OK ] Stopped Create Volatile Files and Directories. [ OK ] Stopped target Local File Systems. Unmounting /boot/efi... Unmounting /home/jorge... Unmounting /run/user/108... Unmounting /run/user/1000... [ OK ] Unmounted /boot/efi. [ OK ] Stopped File System Check on /deu/disk/by-uuid/DO7D-75AB. [ OK ] Removed slice system-systemd\x2dfsck.slice. [ OK ] Unmounted /run/user/1000. [ OK ] Unmounted /run/user/108. [ OK ] Unmounted /home/jorge. [ OK ] Stopped target Local File Systems (Pre). [ OK ] Stopped Create Static Device Nodes in /dev. [ OK ] Stopped /dev/mapper/cryptswapl. [ OK ] Stopped /dev/disk/by-uuid/a754e267-a770-4d4b-98a8-19ba7c9b9fd4. [ OK ] Stopped /dev/disk/by-id/dm-uuid-CRYPT-PLAIN-cryptswapl. [ OK ] Stopped /dev/disk/by-id/dm-name-cryptswapl. [ OK ] Stopped /sys/devices/virtual/block/dm-0. [ OK ] Stopped Cryptography Setup for cryptswapl. [ OK ] Reached target Unmount All Filesystems. [ OK ] Removed slice system-systemd\x2dcryptsetup.slice. Stopping Load/Save Random Seed... [ OK ] Stopped Load/Save Random Seed. [ OK ] Stopped Remount Root and Kernel File Systems. [ OK ] Reached target Shutdown. [ 112.7291111] reboot: Power down _ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552985 Title: [Dell Inspiron 14 3000 Series] System hangs on poweroff To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552985/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs