Public bug reported: I have a Lenovo Thinkpad X260 docking with a Lenovo 40A20090UK docking station. I have two monitors plugged into the back of the dock via its two separate displayport connectors. Booting the machine whilst docked causes the machine to freeze when it is undocked. Same for booting undocked, then docking.
May relate to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1604313 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-34-generic 4.4.0-34.53 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/pcmC0D0p: luke 5384 F...m pulseaudio /dev/snd/controlC0: luke 5384 F.... pulseaudio CurrentDesktop: i3 Date: Thu Aug 18 13:33:18 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=06d00448-ea78-46fb-8a32-6ec62b16a454 InstallationDate: Installed on 2016-06-06 (73 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 20F6CTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed root=UUID=6658071a-159f-4980-b5f8-a0b728bb8dc9 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-34-generic N/A linux-backports-modules-4.4.0-34-generic N/A linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/01/2016 dmi.bios.vendor: LENOVO dmi.bios.version: R02ET48W (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20F6CTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR02ET48W(1.21):bd06/01/2016:svnLENOVO:pn20F6CTO1WW:pvrThinkPadX260:rvnLENOVO:rn20F6CTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20F6CTO1WW dmi.product.version: ThinkPad X260 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial ** Description changed: I have a Lenovo Thinkpad X260 docking with a Lenovo 40A20090UK docking station. I have two monitors plugged into the back of the dock via its two separate displayport connectors. Booting the machine whilst docked causes the machine to freeze when it is undocked. Same for booting undocked, then docking. + + May relate to + https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1604313 ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-34-generic 4.4.0-34.53 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/pcmC0D0p: luke 5384 F...m pulseaudio - /dev/snd/controlC0: luke 5384 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/pcmC0D0p: luke 5384 F...m pulseaudio + /dev/snd/controlC0: luke 5384 F.... pulseaudio CurrentDesktop: i3 Date: Thu Aug 18 13:33:18 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=06d00448-ea78-46fb-8a32-6ec62b16a454 InstallationDate: Installed on 2016-06-06 (73 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 20F6CTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-34-generic.efi.signed root=UUID=6658071a-159f-4980-b5f8-a0b728bb8dc9 ro quiet splash vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-4.4.0-34-generic N/A - linux-backports-modules-4.4.0-34-generic N/A - linux-firmware 1.157.3 + linux-restricted-modules-4.4.0-34-generic N/A + linux-backports-modules-4.4.0-34-generic N/A + linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/01/2016 dmi.bios.vendor: LENOVO dmi.bios.version: R02ET48W (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20F6CTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40697 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR02ET48W(1.21):bd06/01/2016:svnLENOVO:pn20F6CTO1WW:pvrThinkPadX260:rvnLENOVO:rn20F6CTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20F6CTO1WW dmi.product.version: ThinkPad X260 dmi.sys.vendor: LENOVO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1614513 Title: System freezes when undocking laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1614513/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
