Public bug reported: Running 11.10 on a Dell OptiPlex 780. More than half the time when I reboot (e.g. by running "reboot" as root), the system will hang just after displaying the "now restarting" message, and not reboot. Adding "reboot=bios" to the kernel command line seems to solve this problem: four reboots in a row have been successful. I have tried updating to the latest BIOS (revision A12), and that hasn't made any difference.
This seems to be an equivalent problem to #488319 (OptiPlex 760) and #115011 (OptiPlex 745). I've found other references to the problem here: <https://wiki.inf.ed.ac.uk/DICE/F13Upgrade> (apparently solved by reboot=bios) <http://fogproject.org/forum/threads/tftpboot-restart-problems.238/> (apparently solved by changing kernel) ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-16-generic 3.0.0-16.28 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.23-0ubuntu4 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lightdm 1535 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf7adc000 irq 50' Mixer name : 'Analog Devices AD1984A' Components : 'HDA:11d4194a,10280420,00100400' Controls : 34 Simple ctrls : 20 Date: Thu Mar 8 16:18:22 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: Dell Inc. OptiPlex 780 ProcEnviron: LANGUAGE=en_GB: LANG=en_GB.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-16-generic root=UUID=21453ce7-2d21-43c9-bc33-a496207cee55 ro quiet splash reboot=bios vt.handoff=7 PulseSinks: Error: command ['pacmd', 'list-sinks'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. PulseSources: Error: command ['pacmd', 'list-sources'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.0.0-16-generic N/A linux-backports-modules-3.0.0-16-generic N/A linux-firmware 1.60 RfKill: SourcePackage: linux StagingDrivers: mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/09/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 03NVJ6 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd12/09/2011:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn03NVJ6:rvrA00:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex 780 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: apport-bug i386 oneiric staging -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/950056 Title: Reboot hangs on Dell OptiPlex 780 (board 03NVJ6); reboot=bios works around To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/950056/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
