← Back to team overview

kernel-packages team mailing list archive

[Bug 1583044] Re: attaching a docking station only work once, second time freezes


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.

  attaching a docking station only work once, second time freezes

Status in linux package in Ubuntu:
Status in linux source package in Xenial:

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
   /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
   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: