I first tested linux- image-4.6.0-040600rc1-generic_4.6.0-040600rc1.201603261930_amd64.deb and it *did* freeze.
I then tested linux- image-4.6.0-040600rc7-generic_4.6.0-040600rc7.201605081830_amd64.deb and it did not crash. I then tested linux- image-4.6.0-040600rc4-generic_4.6.0-040600rc4.201604172330_amd64.deb and it did not crash. I then tested linux- image-4.6.0-040600rc3-generic_4.6.0-040600rc3.201604120934_amd64.deb and it did not crash. However, when shutting down after my test, it oopsed and then did not shutdown, so I had to power off hard. I've captured the oops with my phone's cam if it's of any interest. Looked like a crash in the filesystem. Could have been a random btrfs crasher. Then, I tested linux- image-4.6.0-040600rc2-generic_4.6.0-040600rc2.201604031130_amd64.deb and it *did* freeze after the first attempt to dock it to the station. I have not repeated the test though. It felt as if the rc3 was also very slow when docking or undocking. It took a few seconds for the screen to blink, which happens every time my monitor configuration changes (i.e. after docking or undocking). So the change happened somewhere between rc2 and rc3. Note that my interest in building multiple kernels now is not very high. -- 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/1583044 Title: attaching a docking station only work once, second time freezes Status in linux package in Ubuntu: Triaged Status in linux source package in Xenial: Triaged Bug description: I can reliably make Linux freeze. If I boot past the cryptsetup password dialog into GDM (I think), attach a docking station, unattach, then reattach, the system freezes. At least I cannot move the mouse cursor anymore, switch VTs, reboot, num lock doesn't toggle. I think it works well when *not* booting into GDM, but staying at the passphrase dialogue of the initramfs. I'm having a Thinkpad X240 with two external monitors. This is the standard ubuntu kernel, I haven't tested upstream kernels just yet. I'm intending to test with linux- image-4.6.0-040600-generic_4.6.0-040600.201605151930_amd64.deb from http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-yakkety/ now. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-22-generic 4.4.0-22.40 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: muelli 1991 F.... pulseaudio /dev/snd/controlC0: muelli 1991 F.... pulseaudio CurrentDesktop: GNOME Date: Wed May 18 10:35:15 2016 HibernationDevice: RESUME=UUID=af92c9d7-569e-41d4-86d2-af0ada5f9377 InstallationDate: Installed on 2015-12-02 (167 days ago) InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151027) MachineType: LENOVO 20AMS61707 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic root=/dev/mapper/lvm--vg-ubuntu--root ro rootflags=subvol=@ cryptopts=target=crypto,source=/dev/disk/by-uuid/4a1951b7-3604-4891-8ec6-3f5c9112d30d quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-22-generic N/A linux-backports-modules-4.4.0-22-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/10/2016 dmi.bios.vendor: LENOVO dmi.bios.version: GIET85WW (2.35 ) dmi.board.asset.tag: Not Available dmi.board.name: 20AMS61707 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGIET85WW(2.35):bd03/10/2016:svnLENOVO:pn20AMS61707:pvrThinkPadX240:rvnLENOVO:rn20AMS61707:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20AMS61707 dmi.product.version: ThinkPad X240 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1583044/+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