This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1820811
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
** Tags added: cosmic
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https://bugs.launchpad.net/bugs/1820811
Title:
Thunderbolt3 dock freezes X on hotplug when used with external
displays
Status in linux package in Ubuntu:
Incomplete
Bug description:
This bug is very similar to https://bugs.launchpad.net/dell-
sputnik/+bug/1752165 and has the same steps to reproduce, but it's not
related to nvidia drivers. I have Lenovo Thinkpad T480s connected to a
ThinkPad Thunderbolt 3 Dock. I have installed 4.15.0.46, 4.18.0.16
kernel. Both of these kernels have the issue. I followed this comment
https://bugs.launchpad.net/dell-sputnik/+bug/1752165/comments/41 and
installed 4.20.6 from UKUU and the issue is gone.
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