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 1902861
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
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https://bugs.launchpad.net/bugs/1902861
Title:
drm/i915/dp_mst - wait longer during the clock recovery for Display
port
Status in HWE Next:
New
Status in OEM Priority Project:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.6 package in Ubuntu:
New
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.6 source package in Focal:
In Progress
Status in linux source package in Groovy:
New
Status in linux source package in Hirsute:
Incomplete
Bug description:
[Impact]
For some TGL platform, connect with the external monitor on the docking
station(SC),
after cold/warm boot, the external monitor can't output the video and need to
hotplug the docking station.
[Fix]
On the link-training phase, Wait longer during the clock recovery.
[test]
With the patch, The TGL-machine connect with the external monitor on docking
station(SC) and
can output the video to the external monitor on docking station after
cold/warm boot.
[Regression Potential]
Medium, it may not the root cause.
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