This kernel is has that patch that will be accepted by upstream so, please test this kernel in http://kernel.ubuntu.com/~manjo/precise/lp1000424-usb/
Please post results (dmesg snip) like I have done below for USB 3.0 port and USB 2.0 ports on your system. I tested this kernel on a Lenovo system: Test results ============= USB 3.0 device connected to SuperSpeed port -------------------------------------------- [ 34.694033] usb 4-1: new SuperSpeed USB device number 2 using xhci_hcd [ 34.712925] scsi6 : usb-storage 4-1:1.0 [ 35.709947] scsi 6:0:0:0: Direct-Access JetFlash Transcend 16GB 1.00 PQ: 0 ANSI: 5 [ 35.710886] sd 6:0:0:0: Attached scsi generic sg3 type 0 [ 35.711475] sd 6:0:0:0: [sdc] 30871552 512-byte logical blocks: (15.8 GB/14.7 GiB) [ 35.712721] sd 6:0:0:0: [sdc] Write Protect is off [ 35.712725] sd 6:0:0:0: [sdc] Mode Sense: 23 00 00 00 [ 35.712841] sd 6:0:0:0: [sdc] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA [ 35.714627] sdc: sdc1 USB 3.0 device connected to highspeed port ------------------------------------------- [ 148.128616] usb 1-1.2: new high-speed USB device number 5 using ehci_hcd [ 148.226040] scsi7 : usb-storage 1-1.2:1.0 [ 149.225645] scsi 7:0:0:0: Direct-Access JetFlash Transcend 16GB 1.00 PQ: 0 ANSI: 5 [ 149.227690] sd 7:0:0:0: Attached scsi generic sg3 type 0 [ 149.230196] sd 7:0:0:0: [sdc] 30871552 512-byte logical blocks: (15.8 GB/14.7 GiB) [ 149.230555] sd 7:0:0:0: [sdc] Write Protect is off [ 149.230563] sd 7:0:0:0: [sdc] Mode Sense: 23 00 00 00 [ 149.231333] sd 7:0:0:0: [sdc] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA [ 149.235822] sdc: sdc1 [ 149.238035] sd 7:0:0:0: [sdc] Attached SCSI removable disk -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1000424 Title: USB 3.0 mode only works after suspend for some PantherPoint devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1000424/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs