I have the same (type of) error on a T61 with kernel 2.6.22-14-generic. The single USB Port on the right works all the time. The two USB-Ports on the left sometimes don't work. I couldn't figure out any regularity, when the ports get disabled. However, when I reload the kernel module for USB with 'sudo modprobe -r --force ehci-hcd' the USB ports work again, also for a longer period than 10 min. (thx to Nemanja Stefanovic tip!)
-- kernel disables irq after 10 minutes https://bugs.launchpad.net/bugs/126369 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs