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 1906839
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/1906839
Title:
Use INTx for Pericom USB controllers
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.10 package in Ubuntu:
Won't Fix
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.10 source package in Focal:
Fix Committed
Bug description:
[Impact]
Pericom EHCI/OHCI controller cannot detect USB hotplug after using MSI.
[Fix]
Disable MSI and fallback to INTx.
[Test]
Hotplug any USB device and nothing gets detected.
With the fix applied the issue is gone.
[Where problems could occur]
Nothing wrong can happen. It was already using INTx before 306c54d0edb6
("usb: hcd: Try MSI interrupts on PCI devices"), and now it goes back to
use INTx again.
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