This is still happens with latest kernel 3.13.0-45-generic in Ubuntu 14.04, when no workaround is in place.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1301601 Title: [Dell Latitude E7440] suspend sometimes freezes when lock screen activates Status in linux package in Ubuntu: Expired Bug description: Closed lid, expecting laptop to suspend, but found it later hot, frozen and *not* suspended. (Airflow was not the best, since it was in a bag.) WORKAROUND: Hangs do not occur if the lock screen is disabled at suspend. WORKAROUND 2: Make pm-utils switch to console before suspend (and back after resume). ProblemType: KernelOops DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-21-generic 3.13.0-21.43 ProcVersionSignature: Ubuntu 3.13.0-21.43-generic 3.13.8 Uname: Linux 3.13.0-21-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.14-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lightdm 1288 F.... pulseaudio oyvind 1866 F.... pulseaudio /dev/snd/controlC1: lightdm 1288 F.... pulseaudio oyvind 1866 F.... pulseaudio Date: Wed Apr 2 22:46:06 2014 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=d913ab68-ff2c-481e-9e50-2cddfc2bfc33 InstallationDate: Installed on 2014-04-01 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326) InterpreterPath: /usr/bin/python3.4 MachineType: Dell Inc. Latitude E7440 ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-21-generic.efi.signed root=UUID=7255658f-91f7-4dba-b6c4-185cd810e17b 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-3.13.0-21-generic N/A linux-backports-modules-3.13.0-21-generic N/A linux-firmware 1.127 SourcePackage: linux Title: [Dell Inc. Latitude E7440] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 02/18/2014 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 07F3F4 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA08:bd02/18/2014:svnDellInc.:pnLatitudeE7440:pvr01:rvnDellInc.:rn07F3F4:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7440 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1301601/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp