Joseph, Thanks. I tested the Kernel. USB was dead after resume.
Linux version 3.13.11-03131106-generic (jsalisbury@gloin) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201410291902 SMP Wed Oct 29 19:04:24 UTC 2014 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1384041 Title: [Dell Precision M3800] USB is dead after resume from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384041/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
