I am having similar issues. Writing to an SDCard sometimes kills all USB ports. I can recover all USB ports by logging in over ssh and running the following script:
for port in $(lspci | grep USB | cut -d' ' -f1); do echo -n "0000:${port}"| sudo tee /sys/bus/pci/drivers/xhci_hcd/unbind; sleep 5; echo -n "0000:${port}" | sudo tee /sys/bus/pci/drivers/xhci_hcd/bind; sleep 5; done This has happened 3 or 4 times in the last 2 weeks and each time I can recover without reboot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956518 Title: linux-firmware 1.187.24 may crash USB ports To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1956518/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs