Sometimes (not always), when my laptop blanks the screen and turns off the backlight due to inactivity, I cannot resume to my desktop. Hitting a key or moving the mouse does not bring up the "Locked screen" dialog.
I just noticed that the system does not crash completely, I still can SSH into it. As I saw a kernel crash in dmesg, I report this against linux, but X.org or -intel may be the cause, too.
ProblemType: Bug
Architecture: amd64
Date: Mon Jun 8 18:39:11 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=95e9e976-0743-4d55-8f04-a61eff9f49f0
MachineType: LENOVO 7458WF7
Package: linux-image-2.6.30-8-generic 2.6.30-8.9
ProcCmdLine: root=UUID=5a008663-52f3-4cbe-ac05-12b710df2baa ro usbcore.autosuspend=1 pciehp.pciehp_force=1 quiet splash
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=de_DE.UTF-8
LANGUAGE=de_DE.UTF-8
ProcVersionSignature: Ubuntu 2.6.30-8.9-generic
RelatedPackageVersions: linux-backports-modules-2.6.30-8-generic N/A
SourcePackage: linux
Uname: Linux 2.6.30-8-generic x86_64
dmi.bios.date: 03/17/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET42WW (2.06 )
dmi.board.name: 7458WF7
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:bvr6DET42WW(2.06):bd03/17/2009:svnLENOVO:pn7458WF7:pvrThinkPadX200:rvnLENOVO:rn7458WF7:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7458WF7
dmi.product.version: ThinkPad X200
dmi.sys.vendor: LENOVO
I saw this too earlier on 2.6.30-9