I updated my 6420's BIOS from A08 to A19 and found the same behavior -- if the computer goes to sleep the X session accepts no mouse clicks, though the mouse pointer will still move.
I can ctrl-alt-f6 (or f4 etc.) and get to a text console, log in, sudo, kill the active X session and log into the computer again. This isn't exactly a useful workaround. For the time being I have set the system to "do nothing" when I close the lid -- instead of sleep. This doesn't help my battery life, but I keep it plugged in most of the time. I'd love to see a fix for this. -- 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/1162360 Title: [Dell Inc. Latitude E6420] suspend/resume failure Status in “linux” package in Ubuntu: Incomplete Bug description: I don't know why it keeps freezing. ProblemType: KernelOops DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-15-generic 3.8.0-15.25 ProcVersionSignature: Ubuntu 3.8.0-15.25-generic 3.8.4 Uname: Linux 3.8.0-15-generic x86_64 Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dwayne 2860 F.... pulseaudio /dev/snd/seq: timidity 4241 F.... timidity Date: Sat Mar 30 15:54:22 2013 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume HibernationDevice: RESUME=UUID=16584911-78b7-4fb8-90d3-722619f1f973 InstallationDate: Installed on 2013-03-12 (18 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130311.1) InterpreterPath: /usr/bin/python3.3 MachineType: Dell Inc. Latitude E6420 MarkForUpload: True ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-15-generic root=/dev/mapper/ubuntu--vg-root 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-3.8.0-15-generic N/A linux-backports-modules-3.8.0-15-generic N/A linux-firmware 1.104 SourcePackage: linux Title: [Dell Inc. Latitude E6420] suspend/resume failure UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 04/25/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.asset.tag: Dwayne S dmi.board.name: 0K0DNP dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.asset.tag: Dwayne S dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA03:bd04/25/2011:svnDellInc.:pnLatitudeE6420:pvr01:rvnDellInc.:rn0K0DNP:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6420 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/1162360/+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