Bug reported as per instructions from Christopher M. Penalver (penalvch)
Shutdown and Reboot failure on Dell XPS/nVidia 295.49/Ubuntu 12.04
Sometimes "sudo reboot -h now" works, sometime not.
Had the same problem on 11.10 so I didn't install nVidia driver on a clean 12.04 install but problem was still there. Installed the nVidia driver because it didn't make a difference.
Tried stopping various unity processes using "system monitor" before a reboot (sudo reboot -h now) and this seems to work but it is terribly inefficient
The unity processes stopped:
unity-files-daemon
unity-applications-daemon
I then tried it using the ubuntu "shutdown" button after stopping the same processes and it also seems to have worked
WORKAROUND: Reverted to non-mainline kernel "linux-headers-3.2.0-25-generic-pae" and removed all nvidia drivers. Operating on nouveau graphics drivers shutdown and Restart work perfectly.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-24-generic-pae 3.2.0-24.38
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic-pae 3.2.16
Uname: Linux 3.2.0-24-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: cormac 1724 F.... pulseaudio
/dev/snd/controlC0: cormac 1724 F.... pulseaudio
cormac 1765 F.... TeamViewer.exe
/dev/snd/controlC1: cormac 1724 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfebfc000 irq 47'
Mixer name : 'SigmaTel STAC9228'
Components : 'HDA:83847616,1028022e,00100201'
Controls : 28
Simple ctrls : 19
Card1.Amixer.info:
Card hw:1 'Set'/'C-Media USB Headphone Set at usb-0000:00:1d.7-1.2, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0d8c:000c'
Controls : 7
Simple ctrls : 3
Card2.Amixer.info:
Card hw:2 'U0x46d0x809'/'USB Device 0x46d:0x809 at usb-0000:00:1d.7-1.3.3, high speed'
Mixer name : 'USB Mixer'
Components : 'USB046d:0809'
Controls : 2
Simple ctrls : 1
Card2.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 17
Mono: Capture 10 [59%] [20.70dB] [on]
Date: Tue May 22 12:45:57 2012
HibernationDevice: RESUME=UUID=5e07cde7-2884-46fe-a4d3-362c6a19050e
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Dell Inc. XPS M1530
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic-pae root=UUID=8ece3500-c862-476e-9e19-aa92885f05b6 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-24-generic-pae N/A
linux-backports-modules-3.2.0-24-generic-pae N/A
linux-firmware 1.79
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 0XR509
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd07/14/2008:svnDellInc.:pnXPSM1530:pvr:rvnDellInc.:rn0XR509:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1530
dmi.sys.vendor: Dell Inc.
Update:
I tried the following and then tried "sudo reboot -h now" - which failed to shutdown/restart the computer
I stopped the following unity process: "unity-
I am carrying out these tasks remotely so I will have to wait to get home and manually restart the computer to try out the opposite actions, i.e. stop "unity-
Cormac