Public bug reported:
[Impact]
Connect with the WD19TB on the right TB port and plug the USB dongle on it,
the machine can't recognize the USB dongle.
[Fix]
Enable the PCI ACS when Intel IOMMU is detected with platform opt in hint.
[test]
With the fix, the machine can recognize the USB dongle.
[Regression Potential]
Low. the patch has landed on the mainline kernel.
** Affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Assignee: koba (kobako)
Status: In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => koba (kobako)
** Package changed: linux (Ubuntu) => linux-oem-5.6 (Ubuntu)
** Changed in: linux-oem-5.6 (Ubuntu)
Assignee: koba (kobako) => (unassigned)
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Assignee: (unassigned) => koba (kobako)
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1891449
Title:
Enable PCI ACS for platform opt
Status in linux-oem-5.6 package in Ubuntu:
New
Status in linux-oem-5.6 source package in Focal:
In Progress
Bug description:
[Impact]
Connect with the WD19TB on the right TB port and plug the USB dongle on it,
the machine can't recognize the USB dongle.
[Fix]
Enable the PCI ACS when Intel IOMMU is detected with platform opt in hint.
[test]
With the fix, the machine can recognize the USB dongle.
[Regression Potential]
Low. the patch has landed on the mainline kernel.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.6/+bug/1891449/+subscriptions
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