I can demonstrate that this isn't a hardware problem by docking the laptop while powered on in the BIOS setup; there it docks just fine without shutting off.
** Changed in: linux (Ubuntu) Status: Expired => Confirmed -- 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/1184987 Title: Connection T510 to Mini Dock Series 3 shuts down system Status in “linux” package in Ubuntu: Confirmed Bug description: Whenever I connect my Lenvo Thinkpad T510 to my Mini Dock Series 3 dock (Type 4337), the system shuts down cold. If it was in stand-by before, it is now turned off and I have to reboot the notebook. Disconnecting works fine. This is a severe problem as I experience a potential data loss each time I connect the notebook as well as a time loss of course. I also want to stress, that I experience this phenomena only with one of my two docking stations. The other one works fine. I did not find any log entry, which is related to the event. Experienced on Ubuntu 13.04., but not with Windows 7 running on the same system. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-22-generic 3.8.0-22.33 ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11 Uname: Linux 3.8.0-22-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: simon 2351 F.... pulseaudio CRDA: country DE: (2400 - 2483 @ 40), (N/A, 20) (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS (5470 - 5725 @ 40), (N/A, 26), DFS Date: Tue May 28 13:35:33 2013 HibernationDevice: RESUME=UUID=ed97c752-3ee4-4d89-b266-7ca15d39b215 InstallationDate: Installed on 2013-04-28 (29 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: LENOVO 43843AG MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-22-generic root=UUID=53afe106-6a0a-4e5a-8928-98b3d905e995 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-22-generic N/A linux-backports-modules-3.8.0-22-generic N/A linux-firmware 1.106 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/26/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 6MET92WW (1.52 ) dmi.board.name: 43843AG 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:bvr6MET92WW(1.52):bd09/26/2012:svnLENOVO:pn43843AG:pvrThinkPadT510:rvnLENOVO:rn43843AG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 43843AG dmi.product.version: ThinkPad T510 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1184987/+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