I confirm this bug on my Compaq Presario V2615LA laptop. Restarting the ehci_hcd module fixes it:
dmesg when finding problem: ... [17179719.388000] ohci_hcd 0000:00:13.1: wakeup [17179719.776000] usb 3-1: new full speed USB device using ohci_hcd and address 2 [17179719.972000] usb 3-1: not running at top speed; connect to a high speed hub [17179719.980000] usb 3-1: configuration #1 chosen from 1 choice [17179720.684000] usbcore: registered new driver libusual [17179720.760000] SCSI subsystem initialized [17179720.764000] Initializing USB Mass Storage driver... ... dmesg after removing and reinserting ehci_hcd: ... [17180021.596000] ehci_hcd 0000:00:13.2: EHCI Host Controller [17180021.596000] ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 1 [17180021.600000] ehci_hcd 0000:00:13.2: irq 193, io mem 0xd0002000 [17180021.600000] ehci_hcd 0000:00:13.2: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 [17180021.600000] usb usb1: configuration #1 chosen from 1 choice [17180021.600000] hub 1-0:1.0: USB hub found [17180021.600000] hub 1-0:1.0: 8 ports detected [17180029.504000] usb 1-2: new high speed USB device using ehci_hcd and address 2 ... -- USB storage not running at top speed since Edgy beta https://launchpad.net/bugs/66115 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
