kernel-packages team mailing list archive

[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1565924

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

-- 
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/1565924

Title:
  [Xenial] Freeze when docking Laptop

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi

  I just upgraded from Kubuntu 15.10 to 16.04, to see if crashes related
  to screen layout changes have been fixed in Plasma 5.5.

  I'm not sure whether the situation really improved. However, I
  experience a freeze when docking laptop. I didn't experience it on
  15.10.

  How to reproduce:
  * Start laptop docked. On the dock, I have two monitors (one HDMI, one VGA). I correctly see desktop on three monitors.
  * Undock laptop. Screen is correctly resized (however, Plasma stills crashes, but this is maybe off topic here)
  * Dock laptop again. Laptop is frozen.

  Freeze happen with default kernel linux-image-4.4.0-16-generic.
  However, I don't reproduce the freeze with linux-image-4.4.0-040400-generic (from kernel-ppa, installed before Xenial upgrade).

  Hardware is Dell Latitude E7450
  Integrated Graphics Chipset: Intel(R) HD Graphics 5500

  I tried to see content of various logs when freeze happen, but I
  didn't see anything relevant:

  tail -f /var/log/kern.log
  journalctl -f

  The issue is 100% reproducible, so I can provide more information if
  you tell me what to add :-)

  Thanks

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1565924/+subscriptions