ahau, could you please execute the following via a terminal in order for the necessary debugging information to be attached: apport-collect 1372006
** Package changed: pm-utils (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pm-utils in Ubuntu. https://bugs.launchpad.net/bugs/1372006 Title: pci_devices does not terminate at computer shutdown Status in linux package in Ubuntu: Incomplete Bug description: Shutdown does not halt on my Dell Precision 390 the shutdown sequence prints on the console: mount: / is busy /etc/init.d/sendsigs does not terminate systemd-udevd Only solution: enable and use ALT-SYSREQ REISUB (to keep the root fs clean) I tried to change GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub (+ update-grub): GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash reboot=pci" or GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash reboot=bios" or GRUB_CMDLINE_LINUX_DEFAULT="quiet nosplash acpi=force Shutdown still hangs with 'mount: / is busy' I even updated the BIOS from 2.0.4 to 2.06, no luck. When booting from a Knoppix 6.0.1 CD with a 2.6 kernel, shutdown works and halts the system to poweroff state. Any ideas? Thanks ahau ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: pm-utils 1.4.1-13ubuntu0.1 ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6 Uname: Linux 3.13.0-35-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3.4 Architecture: amd64 Date: Sun Sep 21 02:58:10 2014 ExecutablePath: /usr/lib/pm-utils/power.d/pci_devices InstallationDate: Installed on 2014-09-19 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) InterpreterPath: /bin/dash OmitPids: 11761 308 302 11767 723 714 11890 11767 723 714 11890 PackageArchitecture: all ProcCmdline: /bin/sh /usr/lib/pm-utils/power.d/pci_devices false ProcEnviron: LC_COLLATE=C PATH=(custom, no user) SourcePackage: pm-utils Title: pci_devices does not terminate at computer shutdown UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1372006/+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