I have also tried "blacklist ehci_hcd" in the "/etc/modprobe.d/blacklist.conf" file but still the same problem. I think this is affected other people (even Linus Torvalds himself!) but I cannot find a fix for this. Please see -
https://lkml.org/lkml/2012/4/14/217 http://www.pclinuxos.com/forum/index.php?PHPSESSID=1fq1p6kgrina6oqec0o72gss72&topic=104879.30 http://www.cyberciti.biz/faq/rhel-redhat-centos-kernel-usb-reset-high-speed-ehci_hcd/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1012291 Title: USB disconnect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1012291/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs