This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-bionic

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem in Ubuntu.
https://bugs.launchpad.net/bugs/1756700

Title:
  Ryzen/Raven Ridge USB ports do not work

Status in HWE Next:
  Triaged
Status in linux package in Ubuntu:
  Triaged
Status in linux-oem package in Ubuntu:
  New
Status in linux source package in Xenial:
  Triaged
Status in linux-oem source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Committed
Status in linux-oem source package in Bionic:
  Triaged

Bug description:
  ===SRU Justification===
  [Impact]
  USB controller stops working once a USB device gets plugged.

  [Fix]
  Add a delay for xHC can workaround the issue.

  [Test]
  Plug a USB device to affected system. USB controller stop working
  afterward.
  With the patch, the issue is solved.

  [Regression Potential] 
  Low. Trivial patch which adds a delay. No functional change.

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