I had the same problem but it started after I uncomment the following line in the /etc/default/grub file:
#GRUB_TERMINAL=console. I commented it again and the PC start to shutdown again without problems. I commented this line at first because I had a problem with my screen resolution mode... it was always as 640x400 so I commented that line and my system let me choose another mode. Of course when I commented the line again the resolution started again in 640x400, but I changed the line GRUB_GFXMODE=640x400 to GRUB_GFXMODE=1024x768 and it works fine in this mode... I will try other modes later but maybe this can help you all. The GRUB_TERMINAL line is related to the graphical terminal and the line GRUB_GFXMODE is related to the Mode of the graphical terminal. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1582011 Title: Swap Failed, Indefinite hang on reboot/shutdown "Reached target Shutdown" Status in systemd package in Ubuntu: Confirmed Bug description: This bug has been affecting me since 15.04 Prior to shutdown I activate debug-shell 'systemctl start debug-shell' I have followed bug #1464917 and installed Xenial-proposed with systemd 229-4ubuntu5 package. I have finally collected shutdown info using vt9. Issues collecting info due to what I believe is a timeout where vt9 is not activated when ctl+alt+F9 is pressed. I was able to collect info in vt9 to file "shutdown.text" I appended outputs to file "shutdown.text" the following commands in this order: systemctl list-jobs >>shutdown.text systemctl --failed >>shutdown.text uname -a >>shutdown.text systemd --version >>shutdown.text lsblk >>shutdown.text blkid >>shutdown.text journalctl -b >>shutdown.text systemctl -all >>shutdown.text journalctl -xe >>shutdown.text After gaining these data I was only able to finish the reboot with the alt+Sysrq and REISUB which forces a reboot even when I just want to shutdown Each output I separated upon next boot by hand with a line ######################### for easier perusing. As a workaround for shutdown/reboot I turn swap off, 'sudo swapoff -a && systemctl poweroff' or 'sudo swapoff -a && reboot' which occasionally fails if SWAP has more data than available RAM. In that latter case I am left waiting for the hang and then using alt+Sysrq+REISUB to reboot then shutdown again immediately upon boot before SWAP has a chance to gain data, then I can use any form of halt, poweroff or menu to shutdown. I have been unable to get answers from AskUbuntu or the above listed bug #1464917 "Reached target Shutdown" I am filing this bug per instructions requested in that bug. Other systemd bugs I have researched #788303 Debian bug reports, #2930 Github and #3087 Github. Thanks for your time and efforts to help with this issue. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: systemd 229-4ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Sun May 15 12:08:34 2016 ExecutablePath: /lib/systemd/systemd InstallationDate: Installed on 2015-06-29 (321 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: Sony Corporation VGN-FW250J ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash XDG_RUNTIME_DIR=<set> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=b010e611-6efb-49a9-bff0-59b9533d659b ro resume=UUID=8bcb4169-f5ab-4ab6-b644-23e528088d41 usbcore.autosuspend=-1 SourcePackage: systemd SystemdDelta: [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf 3 overridden configuration files found. UpgradeStatus: Upgraded to xenial on 2016-04-26 (18 days ago) dmi.bios.date: 07/25/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: R1090Y0 dmi.board.asset.tag: N/A dmi.board.name: VAIO dmi.board.vendor: Sony Corporation dmi.board.version: N/A dmi.chassis.asset.tag: N/A dmi.chassis.type: 10 dmi.chassis.vendor: Sony Corporation dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR1090Y0:bd07/25/2008:svnSonyCorporation:pnVGN-FW250J:pvrC6011MLK:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A: dmi.product.name: VGN-FW250J dmi.product.version: C6011MLK dmi.sys.vendor: Sony Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1582011/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp