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does not resume (no backlight on LCD panel, for example)
seems to be caused by lightdm not by kernel; when 
service lightdm stop
 bug is not reproduced by pm-suspend


ProblemType: KernelOops
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-17-generic 3.13.0-17.37
ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
Uname: Linux 3.13.0-17-generic i686
Annotation: This occured during a previous suspend and prevented it from resuming properly.
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  katherine   1676 F.... pulseaudio
Date: Tue Mar 11 21:08:32 2014
ExecutablePath: /usr/share/apport/apportcheckresume
Failure: suspend/resume
HibernationDevice: RESUME=UUID=3dd143c7-add5-4b7b-8c26-bbd7446abb39
InstallationDate: Installed on 2013-11-09 (121 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
InterpreterPath: /usr/bin/python3.4
MachineType: TOSHIBA Satellite U400
ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic root=UUID=9d9d9d28-df78-475d-af30-72b9ecb189be ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-17-generic N/A
 linux-backports-modules-3.13.0-17-generic  N/A
 linux-firmware                             1.126
SourcePackage: linux
Title: [TOSHIBA Satellite U400] suspend/resume failure
UpgradeStatus: Upgraded to trusty on 2014-03-02 (8 days ago)
UserGroups:

dmi.bios.date: 10/25/2010
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V4.70
dmi.board.name: Satellite U400
dmi.board.vendor: TOSHIBA
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV4.70:bd10/25/2010:svnTOSHIBA:pnSatelliteU400:pvrPSU40A-01M001:rvnTOSHIBA:rnSatelliteU400:rvrNotApplicable:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite U400
dmi.product.version: PSU40A-01M001
dmi.sys.vendor: TOSHIBA

** Affects: linux-meta (Ubuntu)
     Importance: Medium
         Status: Triaged


** Tags: apport-kerneloops i386 kernel-bug-exists-upstream package-from-proposed resume suspend trusty
-- 
[TOSHIBA Satellite U400] suspend/resume failure
https://bugs.launchpad.net/bugs/1290787
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