I did not have time to try other kernels with 16.04 but I did upgrade to 16.10 and the computer is now able to suspend after being released from the dock. This works but causes the computer to lag and also randomly shuts down Firefox on suspend and un-suspend.
-- 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/1634325 Title: Lenovo X250 failes to suspend after being docked Status in linux package in Ubuntu: Incomplete Status in linux source package in Xenial: Incomplete Bug description: I have a Lenovo Thinkpad X250 and the ThinkPad Ultra Dock docking station which is connected to two Lenovo monitors via DisplayPort. Docking works fine but if I remove the computer from the dock and try to suspend, the computer locks up (screen freezes no keyboard commands work) and I have to hard reboot. The computer works fine after removing from the dock except for this suspend issue. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-43-generic 4.4.0-43.63 ProcVersionSignature: Ubuntu 4.4.0-43.63-generic 4.4.21 Uname: Linux 4.4.0-43-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: moorepants 2278 F.... pulseaudio /dev/snd/controlC0: moorepants 2278 F.... pulseaudio CurrentDesktop: Unity Date: Mon Oct 17 18:46:24 2016 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=00333301-992b-4a3e-a93f-f6ace66eec1d InstallationDate: Installed on 2015-11-14 (339 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: LENOVO 20CMCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-43-generic root=UUID=180cbbee-84f0-4f5d-8f67-ab39fe37099a ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-43-generic N/A linux-backports-modules-4.4.0-43-generic N/A linux-firmware 1.157.4 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-22 (178 days ago) dmi.bios.date: 06/19/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET36W (1.15 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CMCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET36W(1.15):bd06/19/2015:svnLENOVO:pn20CMCTO1WW:pvrThinkPadX250:rvnLENOVO:rn20CMCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CMCTO1WW dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634325/+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
