Using the proprietary nvidia drivers fixes the issue, specifically. sudo apt-get install nvidia-304-updates --install-recommends
-- 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/1299821 Title: [LENOVO 4236SGS] suspend/resume failure Status in “linux” package in Ubuntu: Confirmed Bug description: After closing my laptop lid and allowing it to suspend to RAM, the system would not resume properly. The visuals on the GUI returned to its previous state without any artifacts, however the mouse pointer was not working. I used a trackpad and a nipple on my T420 laptop. I left it in this state and the mouse was still dead after about 3-4 minutes. After coming back from making a cup of tea the mouse moved but did not interact with any GUI elements. I have seens some success on previous ubuntu versions if I did a tty switch. This did not work (ctrl+alt+F1), the Unity GUI stayed visible. I then tried the sysreq triggers alt+sysreq RE and lost the mouse pointer again, but the gui stayed visible. I needed to go through the whole alt+sysreq+reisub to make the machine reboot. ProblemType: KernelOops DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-20-generic 3.13.0-20.42 [modified: boot/vmlinuz-3.13.0-20-generic] ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7 Uname: Linux 3.13.0-20-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: brisbanel 2213 F.... pulseaudio /dev/snd/controlC0: brisbanel 2213 F.... pulseaudio Date: Sun Mar 30 08:40:36 2014 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=43d2d849-d65f-425b-b137-55a43d22eb21 InstallationDate: Installed on 2014-03-29 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140329) InterpreterPath: /usr/bin/python3.4 MachineType: LENOVO 4236SGS ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-20-generic root=UUID=c37c49b4-8185-458c-91b7-c6e5d5f103e8 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-3.13.0-20-generic N/A linux-backports-modules-3.13.0-20-generic N/A linux-firmware 1.126 SourcePackage: linux Title: [LENOVO 4236SGS] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 11/28/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 83ET67WW (1.37 ) dmi.board.asset.tag: Not Available dmi.board.name: 4236SGS dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr83ET67WW(1.37):bd11/28/2011:svnLENOVO:pn4236SGS:pvrThinkPadT420:rvnLENOVO:rn4236SGS:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4236SGS dmi.product.version: ThinkPad T420 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1299821/+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
