This bug was fixed in the package linux-oem-5.14 - 5.14.0-1013.13
---------------
linux-oem-5.14 (5.14.0-1013.13) focal; urgency=medium
* focal/linux-oem-5.14: 5.14.0-1013.13 -proposed tracker (LP:
#1955464)
* devices on thunderbolt dock are not recognized on adl-p platform
(LP: #1955016)
- SAUCE: thunderbolt: Runtime PM activate both ends of the device link
- SAUCE: thunderbolt: Tear down existing tunnels when resuming from
hibernate
- SAUCE: thunderbolt: Runtime resume USB4 port when retimers are scanned
- SAUCE: thunderbolt: Do not allow subtracting more NFC credits than
configured
- SAUCE: thunderbolt: Do not program path HopIDs for USB4 routers
- SAUCE: thunderbolt: Add debug logging of DisplayPort resource allocation
-- Chia-Lin Kao (AceLan) <[email protected]> Tue, 21 Dec 2021
16:59:25 +0800
** Changed in: linux-oem-5.14 (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1955016
Title:
devices on thunderbolt dock are not recognized on adl-p platform
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Released
Status in linux source package in Jammy:
In Progress
Status in linux-oem-5.14 source package in Jammy:
Invalid
Bug description:
[Impact]
When booting up with the TBT dock is plugged, the devices(USB, Ethernet) on
the dock can't be recognized. It requires to run lspci command to wake up the
PCI devices to make the devices on the dock work.
[Fix]
The patchset fix this runtime pm issue.
https://patchwork.kernel.org/project/linux-usb/cover/[email protected]/
[Test]
Verified on Dell ADL-P platform with TBT dock.
[Where the problems could occur]
Hard to evaluate, but after some cold boot/warm boot, plug/un-plug the
devices on the dock, didn't observe any regressions.
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