Comment 9 for bug 1437492

I have the sane bug, "error -110" USB error messages, and when I reboot, the computer's UEFI initialisation during boot, at the USB device stage, is very slow.

The problem gets fixed temporarily, if you unplug the computer from the power socket (or turn off the power switch, at the back of the computer), and leave it off until the motherboard loses all its power.

It looks like it is some kernel 3.19 bug with USB ports. Some USB ports remain powered on, if you shutdown the computer, for charging devices, etc.

If you remove the power plug, all USB ports turn off, so the issue gets fixed, until the issue reappears at some random tie, when the kernel gets loaded again.

The issue does not exist with buntus 14.04/14.04.2, and 14.10.