kernel-packages team mailing list archive

[Anders Sjölander <thezood@xxxxxxxxx>]

On the fifth trace suspend I got the picture back on screen but the
computer totally froze, not even REISUB would restart it. This is a bit
different from when I close the laptop lid because then the computer
keeps working but I get a black screen until I restart lightdm. Attached
is the dmesg output after that hang, perhaps it can help.

I do find this which seems to be similar to what I'd expect to find according to the resume t race instructions in your link.
[    2.072557]   Magic number: 0:381:403
[    2.072562]   hash matches /home/apw/COD/linux/drivers/base/power/main.c:803
[    2.072608] power_supply BAT0: hash matches

** Attachment added: "dmesg after computer hanged after resum."
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327110/+attachment/4126934/+files/dmesg-afterhang.txt

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https://bugs.launchpad.net/bugs/1327110

Title:
  [Dell Latitude D420] Black screen after resuming from suspend

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  When resuming from suspend I get a black screen, not possible to get
  back to X without restarting the computer. CTRL-ALT-F1 gets me a
  terminal window but I can't be bothered to find out how to restart X
  these days, it's easier just to restart the computer.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-27-generic 3.13.0-27.50
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic i686
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  thezood    1845 F.... pulseaudio
  Date: Fri Jun  6 10:31:38 2014
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=2fa0e036-da9b-4bdd-93e6-e13acc75ccbd
  InstallationDate: Installed on 2013-11-07 (210 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
  MachineType: Dell Inc. Latitude D420
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   LANGUAGE=en
   TERM=xterm
   PATH=(custom, no user)
   LANG=sv_SE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic root=UUID=97bb6bfe-9f2e-40a0-9cd0-cc8b747c8e30 ro quiet splash vt.handoff=7
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-06-02 (3 days ago)
  dmi.bios.date: 02/02/2008
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.asset.tag: SELULT2355
  dmi.board.name: 0TJ984
  dmi.board.vendor: Dell Inc.
  dmi.chassis.asset.tag: SELULT2355
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd02/02/2008:svnDellInc.:pnLatitudeD420:pvr:rvnDellInc.:rn0TJ984:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Latitude D420
  dmi.sys.vendor: Dell Inc.

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