At the moment I'm running OpenSUSE 11.0 with kernel 2.6.25.16-0.1-default (x86_64) and observe the same behaviour (USB Controller is an ATI S600, by the way).
Whenever I plug in any USB-2.0 device (hard disk, flash memory or external DVD burner - doesn't matter what) it takes quite a while until the device is mounted, and all these guys are mounted only in full speed mode. With usbview I can check, that the high speed devices are connected first to the EHCI hub and become accessible as soon as they are passed to one of the OHCIs. The ehci_hcd seems to try hard to catch the devices, so I get the well-known messages. Sep 18 14:34:44 faramir kernel: usb 6-1: new high speed USB device using ehci_hcd and address 3 Sep 18 14:34:59 faramir kernel: usb 6-1: device descriptor read/64, error -110 Sep 18 14:34:59 faramir kernel: usb 6-1: device descriptor read/64, error -110 Sep 18 14:35:15 faramir kernel: usb 6-1: new high speed USB device using ehci_hcd and address 4 Sep 18 14:35:30 faramir kernel: usb 6-1: device descriptor read/64, error -110 Sep 18 14:35:45 faramir kernel: usb 6-1: device descriptor read/64, error -110 Sep 18 14:35:45 faramir kernel: usb 6-1: new high speed USB device using ehci_hcd and address 5 Sep 18 14:35:56 faramir kernel: usb 6-1: device not accepting address 5, error -110 Sep 18 14:35:56 faramir kernel: usb 6-1: new high speed USB device using ehci_hcd and address 6 Sep 18 14:36:06 faramir kernel: usb 6-1: device not accepting address 6, error -110 Sep 18 14:36:06 faramir kernel: hub 6-0:1.0: unable to enumerate USB device on port 1 Sep 18 14:36:07 faramir kernel: usb 1-1: new full speed USB device using ohci_hcd and address 2 Sep 18 14:36:07 faramir kernel: usb 1-1: not running at top speed; connect to a high speed hub Sep 18 14:36:07 faramir kernel: usb 1-1: configuration #1 chosen from 1 choice Sep 18 14:36:07 faramir kernel: usb 1-1: New USB device found, idVendor=1058, idProduct=0702 Sep 18 14:36:07 faramir kernel: usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 18 14:36:07 faramir kernel: usb 1-1: Product: External HDD Sep 18 14:36:07 faramir kernel: usb 1-1: Manufacturer: Western Digital Is it meaningful that the error message changes betwenn address 4 and address 5 while the error code remains the same. Yesterday I tried a kernel compiled on my on (2.6.26.5-default) -- no improvement at all. Using kernel boot params "acpi=off noapic nohpet" etc. -- no effect. I use the hard disk just for syncing with unison so I could live with that. But I am really embarassed for the low speed behaviour of my DVD burner :-( -- ehci_hcd module causes I/O errors in USB 2.0 devices https://bugs.launchpad.net/bugs/88746 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
