The link you send describe random issue about usb 2.0. I can't say if it will help you or not. You need to test it your self. Try this
sudo modprobe -r ehci_hcd this will disable your usb 2.0 and after this, attach your new dmesg you already how to make dmesg ;) -- Feisty can't access USB ports https://bugs.launchpad.net/bugs/112357 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