I am using a ThinkPad E585, which has a Raven Ridge APU, and the problem still exists for me in kernel 4.20.15.
`lspci` shows that my USB controllers' device IDs are the ones in the list of devices for which the fix is applied (15e0,15e1), but I am still receiving the same error and no USB devices are registered when plugged in. ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux-oem/+bug/1756700/+attachment/5246650/+files/dmesg.txt -- 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: Fix Released 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 Released Status in linux-oem source package in Bionic: Fix Released 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. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1756700/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
