Catimimi
Alexandr Malusek a écrit :
The Kingston DataTraveler II USB flash drive works OK with some computers and doesn't work with some others. Does anybody have an idea what is wrong and how to fix it?
Your problem could be a USB hub problem, I've got such a problem in the past with a hub which was not really USB 2.0 compatible.
In all cases, the USB flash memory drive was connected directly to the PC. I guess the hub is integrated with the motherboard. How can I test that the hub is or isn't USB 2.0 compatible?
In the first case, it seems that you are connected through a hub which uses the driver ehci-hcd in the second case your computer uses driver ohci-hcd.
It's true. On the bad computer, I get: # hwinfo --usb 04: USB 00.0: 10a00 Hub [Created at usb.123] UDI: /org/freedesktop/Hal/devices/usb_device_0_0_0000_00_02_0_if0 Unique ID: k4bc.mTnKQed30pC SysFS ID: /devices/pci0000:00/0000:00:02.0/usb1/1-0:1.0 SysFS BusID: 1-0:1.0 Hardware Class: hub Model: "Linux 2.6.16.13-4-smp ohci_hcd OHCI Host Controller" Hotplug: USB Vendor: "Linux 2.6.16.13-4-smp ohci_hcd" Device: "OHCI Host Controller" Revision: "2.06" Serial ID: "0000:00:02.0" Driver: "hub" Speed: 12 Mbps Module Alias: "usb:v0000p0000d0206dc09dsc00dp00ic09isc00ip00" Config Status: cfg=new, avail=yes, need=no, active=unknown 05: USB 00.0: 10a00 Hub [Created at usb.123] UDI: /org/freedesktop/Hal/devices/usb_device_0_0_0000_00_02_1_if0 Unique ID: pBe4.zOjQRYPFZR1 SysFS ID: /devices/pci0000:00/0000:00:02.1/usb2/2-0:1.0 SysFS BusID: 2-0:1.0 Hardware Class: hub Model: "Linux 2.6.16.13-4-smp ehci_hcd EHCI Host Controller" Hotplug: USB Vendor: "Linux 2.6.16.13-4-smp ehci_hcd" Device: "EHCI Host Controller" Revision: "2.06" Serial ID: "0000:00:02.1" Driver: "hub" Speed: 480 Mbps Module Alias: "usb:v0000p0000d0206dc09dsc00dp01ic09isc00ip00" Config Status: cfg=new, avail=yes, need=no, active=unknown The good one reports: # hwinfo --usb 03: USB 00.0: 10a00 Hub [Created at usb.123] UDI: /org/freedesktop/Hal/devices/usb_device_0_0_0000_01_00_0_if0 Unique ID: k4bc.tlThB+IBUxE SysFS ID: /devices/pci0000:00/0000:00:06.0/0000:01:00.0/usb1/1-0:1.0 SysFS BusID: 1-0:1.0 Hardware Class: hub Model: "Linux 2.6.16.13-4-smp ohci_hcd OHCI Host Controller" Hotplug: USB Vendor: "Linux 2.6.16.13-4-smp ohci_hcd" Device: "OHCI Host Controller" Revision: "2.06" Serial ID: "0000:01:00.0" Driver: "hub" Speed: 12 Mbps Module Alias: "usb:v0000p0000d0206dc09dsc00dp00ic09isc00ip00" Config Status: cfg=new, avail=yes, need=no, active=unknown 04: USB 00.0: 10a00 Hub [Created at usb.123] UDI: /org/freedesktop/Hal/devices/usb_device_0_0_0000_01_00_1_if0 Unique ID: pBe4.eUYGZl5vQD6 SysFS ID: /devices/pci0000:00/0000:00:06.0/0000:01:00.1/usb2/2-0:1.0 SysFS BusID: 2-0:1.0 Hardware Class: hub Model: "Linux 2.6.16.13-4-smp ohci_hcd OHCI Host Controller" Hotplug: USB Vendor: "Linux 2.6.16.13-4-smp ohci_hcd" Device: "OHCI Host Controller" Revision: "2.06" Serial ID: "0000:01:00.1" Driver: "hub" Speed: 12 Mbps Module Alias: "usb:v0000p0000d0206dc09dsc00dp00ic09isc00ip00" Config Status: cfg=new, avail=yes, need=no, active=unknown
Try to connect your USB drive either directly on the MB or through another HUB.
The computer has 6 USB ports but all seems to be driven by the EHCI hub. I wonder, would an external USB hub help? Any recommendations? -- A.M. -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com