Bug#469693: Turned out to be a topology problem - Debian

This is a discussion on Bug#469693: Turned out to be a topology problem - Debian ; Hi, the problem can be avoided by connecting the keyboard/mouse dongle directly (without an extra hub). The card-reader itself works fine and causes no extra problems. Occasional USB-stick problems are gone. Summary: - If the cherry-marlin keyboard/mouse usb dongle is ...

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Thread: Bug#469693: Turned out to be a topology problem

  1. Bug#469693: Turned out to be a topology problem

    Hi,
    the problem can be avoided by connecting the keyboard/mouse dongle directly
    (without an extra hub). The card-reader itself works fine and causes no extra
    problems. Occasional USB-stick problems are gone. Summary:

    - If the cherry-marlin keyboard/mouse usb dongle is connected via a hub the
    USB stack becomes instable and will hang after a while.

    - If the same dongle is connected directly to the mobo all problems are gone.

    I still consider this as a serious bug because with linux the whole USB stack
    hangs while Windows 2003 can recover this problem (the mouse hangs only fora
    second). I tried a different hub with no effect, but I did not try a
    different keyboard.

    J├╝rgen




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  2. Bug#469693: Turned out to be a topology problem

    On Wed, Sep 10, 2008 at 02:32:58PM +0200, Juergen Pfennig wrote:
    > Hi,
    > the problem can be avoided by connecting the keyboard/mouse dongle directly
    > (without an extra hub). The card-reader itself works fine and causes no extra
    > problems. Occasional USB-stick problems are gone. Summary:
    >
    > - If the cherry-marlin keyboard/mouse usb dongle is connected via a hub the
    > USB stack becomes instable and will hang after a while.
    >
    > - If the same dongle is connected directly to the mobo all problems are gone.
    >
    > I still consider this as a serious bug because with linux the whole USB stack
    > hangs while Windows 2003 can recover this problem (the mouse hangs only for a
    > second). I tried a different hub with no effect, but I did not try a
    > different keyboard.


    Could you file a bug report on this at bugzilla.kernel.org and post the bug
    number to this bug report?

    Cheers,
    Moritz



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