After running an update in Ubuntu 20.04, my boot performance is seriously degraded. Running dmesg highlights a few problematic processes.
...
[ 21.921354] usb 1-4: device descriptor read/64, error -110
[ 22.157236] usb 1-4: new high-speed USB device number 3 using xhci_hcd
[ 27.297351] usb 1-4: device descriptor read/64, error -110
[ 42.913317] usb 1-4: device descriptor read/64, error -110
[ 43.021293] usb usb1-port4: attempt power cycle
[ 43.673232] usb 1-4: new high-speed USB device number 4 using xhci_hcd
[ 48.929356] usb 1-4: device descriptor read/8, error -110
[ 54.305334] usb 1-4: device descriptor read/8, error -110
[ 54.541242] usb 1-4: new high-speed USB device number 5 using xhci_hcd
[ 59.681384] usb 1-4: device descriptor read/8, error -110
[ 65.057363] usb 1-4: device descriptor read/8, error -110
[ 65.165292] usb usb1-port4: unable to enumerate USB device
...
[ 66.871831] NET: Registered protocol family 38
[ 128.664088] usb 1-14: new high-speed USB device number 9 using xhci_hcd
...
After running systemd-analyze, you can see the boot time is... total crap.
Startup finished in 29.969s (firmware) + 10.657s (loader) + 1.854s (kernel) + 1min 4.220s (userspace) = 1min 46.701s
graphical.target reached after 30.301s in userspace
Anyone have any idea how to fix this?
