Dell Latitude E6420 fails to reboot

Correction, the model is Dell Latitude E6420

Thanks for your bug report and for your contribution to Ubuntu. In order to determine if this issue is usplash related, please boot your computer with usplash disabled and then shutdown to see if you can reproduce the issue? To disable usplash for a single boot, follow these steps:

1. Hold Esc during Grub boot delay to access the boot menu.
2. Select your actual Ubuntu boot line and press "e" to edit it.
3. Select the "kernel" line and press "e" to edit it.
4. At the end of the line, remove "splash" and "quiet" and press "enter".
5. Type "b" to boot the custom boot line.

There are no lines with splash. I removed "quiet" but the system still hangs on reboot. Attaching grub.cfg.

Hello
Typing in a console (Ctrl+Alt+F1)
sudo reboot -n
cause the same issue ?
Thanks
Fabio

sudo reboot -n causes the same issue.

The last few lines from the console are:

Init: statd main process (774) terminated with status 1
init: portmap main process (605) killed by TERM signal
* Deconfigurating network interfaces...
* Deactivating swap...
* Unmounting weak filesystems...
* Will now restart
[ 301.171892] Restarting system.

than it just hangs there!

Hello SteveM
Can you please reproduce the bug then reboot and run in a terminal
apport-collect -p linux 780757
This will automatically collect needed data from your system to fix this
Thanks
Fabio

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I have the same problem on the same hardware.

Confirmed in both 10.10 Maverick Meerkat (Kernel 2.6.28-generic) and 11.04 Natty Narwahl (2.6.38-8).

I have the same issue on the same hardware on 11.04 Natty Narwahl

I confirmed that the issue occurs with the smaller Dell Latitude E6320 model.

I tried installing the linux-image-2.6.39 from oneric on natty, reboot does still not work.

I can also confirm this issue on the Dell Latitude E6420. If any further information is required, let me know.

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: asieferlinger 2059 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xe6e60000 irq 47'
   Mixer name : 'IDT 92HD90BXX'
   Components : 'HDA:111d76e7,10280493,00100102'
   Controls : 15
   Simple ctrls : 10
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xe5080000 irq 17'
   Mixer name : 'Nvidia GPU 1c HDMI/DP'
   Components : 'HDA:10de001c,10281493,00100100'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=6c790412-c3b1-48bb-8cc3-23a62d18e7dc
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release amd64 (20110426.3)
MachineType: Dell Inc. Latitude E6420
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=de_DE
 LANG=de_DE.UTF-8
 LC_MESSAGES=de_DE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.52
Tags: natty
Uname: Linux 2.6.38-8-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 04/25/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 032T9K
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd04/25/2011:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn032T9K:rvrA01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6420
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

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I resolve the issue on my machine thanks to this article: http://linux.koolsolutions.com/2009/08/04/howto-fix-linux-hangfreeze-during-reboots-and-restarts/

All I had to do was to had 'reboot=pci' to the kernel parameter at boot time.
For a permanent change on grub2, edit /etc/default/grub, and add 'reboot=pci' to the 'GRUB_CMDLINE_LINUX'

Confirmed that this works: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/780757/comments/55

Thank you neOfhyk!

-steve

Yes - it works. But reboot=pci sucks. I have protected my hdd with a password and set the bios option to not ask for the password on reboot.. With reboot=warm everything worked fine (on my old dell laptop).. Now I have to enter the password everytime I reboot :(

-> reboot=pci is just an ugly workaround..

Same problem here with Dell Latitude E6420 on Natty amd64 2.6.38-11-generic, Dell BIOS version A05. The "reboot=pci" workaround didn't work.

Adding 'reboot=a,b,k,p,c' per suggestion in comment #55 helped me resolve this issue on Dell Latitude E6420 on Ubuntu 11.04 amd64 . You should try several options, since kernel will probe every listed method until one of them works.

Same here with Dell Latitude 5420 and Lucid Lynx -- hang on reboot. "reboot=pci" is a pain: couldn't boot after the change of /etc/default/grub. Adding 'reboot=pci' to the 'GRUB_CMDLINE_LINUX' sucks. Instead, the line should read "reboot=a,b,k,c".
This last change was successful -- reboot is working now as it should. Thank you, guys!

SteveM, thank you for reporting this and helping make Ubuntu better. Natty reached EOL on October 2012.
Please see this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We were wondering if this is still an issue in a supported release? If so, could you please test for this with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested and remove the tag:
needs-upstream-testing

This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the text:
needs-upstream-testing

If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested.

Please let us know your results. Thank you for your understanding.

Helpful Bug Reporting Tips:
https://help.ubuntu.com/community/ReportingBugs