AGAIN: USB hang on printing & moving mouse

[Jim Robinson]

Hi,
I saw something like this on my X86 box running redhat 7.3, I could see the
device but it failed to work properly. I would get USB unlink messages for time
to time also. It turned out to be a bad cable, Try to plug the printer into a
different USB port. Did you try to plug it into a powered USB hub? Maybe you are
not supplying enough power to the device and when you move the mouse it causes a
brownout on the USB bus.
just my 2 cents.....
Jim

Albrecht Dreß wrote:

> Unfortunately, I did not make success on solving that problem... I
> recompiled the kernel (2.4.20-pre4-ben0) with verbose usb debugging enabled
> and all scsi stuff switched off, as I got one reply from a user who thought
> it might be connected with an old adaptec scsi card.
>
> I still loose keyboard and mouse when I try to print to the usb printer and
> move the mouse. The printer output is crap, as if it lost the data stream or
> got wrong data. There is ABSOLUTELY NOTHING from the usb subsystem in the
> logs when this happens. However, when I log in remotely and run usbview, it
> takes a long time to come up, and I get five times the messages
>
> kernel: usb_control/bulk_msg: timeout
> kernel: usb-ohci.c: unlink URB timeout
>
> This does NOT happen when launching usbview with a working usb subsystem.
> Maybe this helps the kernel gurus (Huhu! Where are you? ;-)) in resolving
> this issue...
>
> Thanks in advance,
>
>         Albrecht.
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   Albrecht Dreß  -  Johanna-Kirchner-Straße 13  -  D-53123 Bonn (Germany)
>         Phone (+49) 228 6199571  -  mailto:albrecht.dress@arcor.de
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