I think this is still an issue. My external harddisk is still not recognised at the USB3.0 port, but works fine at the USB2.0 port. (please see my post #9 at Question 175839, https://answers.launchpad.net/ubuntu/+source/util-linux/+question/175839)
There are some similar/related bugs which have the stati "open", "incomplete" and "confirmed". Maybe having only one Bug for the common problem "USB3.0 Ports Not Working because of Timeout while waiting for a slot" would be an idea. The other bugs could then be marked as duplicates. Question #175839: Ubuntu 11.04 not recognizing usb 3.0 device Bug #775543: 1033:0194 xhci_hcd: Timeout while waiting for a slot - Issue with USB3 hard disk on 11.04 x86_64 Bug #843764: Oneiric current, USB 3 capable External Box with a 3.5 sata disk inside doesn't work when attached to USB 3 port, works perfect on USB 2 port. AsRock 880GMH/USB3 motherboard Bug #966248: USB3.0 Ports Not Working -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775543 Title: 1033:0194 xhci_hcd: Timeout while waiting for a slot - Issue with USB3 hard disk on 11.04 x86_64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/775543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs