This bug was fixed in the package linux - 5.13.0-16.16
---------------
linux (5.13.0-16.16) impish; urgency=medium
* impish/linux: 5.13.0-16.16 -proposed tracker (LP: #1942611)
* Miscellaneous Ubuntu changes
- [Config] update toolchain in configs
* Miscellaneous upstream changes
- Revert "UBUNTU: [Config] Enable CONFIG_UBSAN_BOUNDS"
-- Andrea Righi <andrea.ri...@canonical.com> Fri, 03 Sep 2021 16:21:14
+0200
** Changed in: linux (Ubuntu Impish)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1941036
Title:
Add USB4 support for AMD SoC
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-5.13 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.13 source package in Focal:
Confirmed
Status in linux source package in Impish:
Fix Released
Status in linux-oem-5.13 source package in Impish:
Invalid
Bug description:
[Impact]
AMD request to backport USB4 support patches.
[Fix]
Add some quirks/fixes for AMD USB4 controller.
[Test]
I don't have the hardware, so it requires AMD to validate the backport.
[Where problems could occur]
- The enumeration of switch ports is changed, the effect is unknown.
- The QUIRK_AUTO_CLEAR_INT is only applied to Intel TBT controller. I've
heard that Asmedia also produces TBT controllers but I've never seen
one. So the change will affect other vendor's TBT controller, if they
exist.
So only apply it to Impish, Unstable and OEM-5.13 to limit regression
risk.
It doesn't break Intel Thunderbolt per my limited testing.
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