Comment 17 for bug 126369

Nemanja Stefanovic (nemik) wrote :

I am also able to confirm this on a Thinkpad T61 with the latest kernel and updates on Gutsy. USB ports stopping to work every 10 minutes on a very popular business laptop should be a little more than 'medium importance' IMO.

A slight remedy I found for this is to unload/reload the kernel module for the USB which seems to bring it back up:
sudo modprobe -r --force ehci-hcd
sudo modprobe ehci-hcd