On Wed, 2006-07-19 at 14:12 +0200, Catimimi wrote:

Alexandr Malusek a écrit :

...

Hi,

On my home computer (SUSE Linux 10.1, 2 x PIII), the OS freezes when I connect the USB flash drive. But if I boot the OS with the flash drive already connected, then I can access it without problems. I had similar problems with previous releases of SUSE Linux so it is not 10.1 specific.

-- A.M.

Hello,

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 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.

Try to connect your USB drive either directly on the MB or through another HUB.

It solved the problem for me.

You may also want to use a powered hub instead of one that draws power from the USB port on the PC. It made a big difference with a couple of USB devices I use. -- Ken Schneider UNIX since 1989, linux since 1994, SuSE since 1998 -- 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

Catimimi writes:

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

Alexandr Malusek a écrit :

Catimimi writes:

...

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.

The manufacturer claims it has "Eight USB 2.0 EHCI ports". The motherboard is Thunder K8WE (S2895), http://www.tyan.com/products/html/thunderk8we_spec.html .

I've downloaded Linux drivers from ftp://ftp.tyan.com/drivers_linux/nVidia_chipset/ but they are for network and audio only. For USB, the Release Notes say:

Q: Does NVIDIA supply a Linux driver for the USB and USB2.0 devices?

A: The USB and USB2.0 devices use the industry standard OHCI and EHCI interfaces, and will work with the standard Linux USB drivers.

Apparently, the standard Linux USB drivers do not work with Tyan S2895 in my case.

-- A.M.

In this case I added an Adaptec PCI->USB+ieee1394 card and it worked fine. There is certainly a problem between the linux driver and the nvidia chipset, have a look at the hardware compatibility list. Michel. -- 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

Alexandr Malusek a écrit :

Catimimi writes:

...

...

Apparently, the standard Linux USB drivers do not work with Tyan S2895 in my case.

In this case I added an Adaptec PCI->USB+ieee1394 card and it worked fine.

Do you mean the Adaptec DuoConnect? http://www.adaptec.com/en-US/products/usb/combo/AUA-3020/

Yes, it works well with Linux, I use it on old computers. USB problems are well known with VIA chipsets, I didn't review the forums for nvidia but if there is a problem it should be mentionned in some forums. http://www.mithunc.net/NVIDIA/ for instance..... Did you try to add the ohci driver to the list of modules to be loaded automatically on boot, try to add it before the ehci driver, it could help. Michel -- 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