** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Jammy)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2013114
Title:
The panel get blank for too long after disconnecting dock with
monitors
Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-6.1 package in Ubuntu:
New
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.1 source package in Jammy:
New
Bug description:
[Impact]
Connect 2 or more external monitors via type-C docking station, the dp-mst
function is working correctly. However, after unplugging the docking station,
the internal display seems to freeze for more than 5 seconds to get back with
normal display.
[Fix]
Intel release a fix to abort the DP AUX transfer on a disconnected TC port.
It prevent the DP to stuck in a unexpected long retry.
[Test]
Connect external monitors to the type-C port on the system. Make sure
external monitor display OK then unplug the dock. The internal panel should not
stay in blank for more than 10 seconds.
[Where problems could occur]
The long AUX transfer timeout and retry are meaningless on a disconnected
sink. Should be no risk for regression.
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