In the kernel 5.4.0-96 it worked randomly. I noticed that instead of the suspend/resume cycle, it was enough to run 'sudo lsusb -v'. After this the USB net stick was detected. Note that both 'sudo' and '-v' were required to have an effect.
Version 5.4.0-97 (still in proposed state) has a proper fix: Focal update: v5.4.160 upstream stable release (LP: #1953387) xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay See also https://patchwork.kernel.org/project/linux-mediatek/patch/20211105160036.549516-1-mathias.ny...@linux.intel.com/ Looks like it took two months for this patch to come from mainline kernel to Ubuntu kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1953223 Title: USB device is not detected during boot, again To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1953223/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
