** Tags added: oem-priority originate-from-1944959 somerville -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1954369
Title: Fix runtime power management on USB controller with XHCI_RESET_ON_RESUME flag Status in HWE Next: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux source package in Focal: Won't Fix Status in linux-oem-5.14 source package in Focal: Confirmed Bug description: [Impact] xHCI driver's runtime resume routine tries to reset USB controller with XHCI_RESET_ON_RESUME flag. That causes USB devices connect to the xHCI fail to work. [Fix] Disable runtime power management regardless of CONFIG_USB_DEFAULT_PERSIST option. [Test] USB devices which connect to the xHCI controller can work normally. [Where problems could occur] USB_DEFAULT_PERSIST is a config for system-wide PM to speed up resume time, so it shouldn't be applied to runtime PM at first place. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1954369/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
