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    W520 w/ Series 3 Dock - No USB connectivity from on dock

    Discussion in 'Lenovo' started by nivla, Aug 29, 2012.

  1. nivla

    nivla Notebook Guru

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    Hi,

    I have a W520 that I just reinstalled Windows 7 Enterprise Edition on (clean install). I have the W520 connected to a Series 3 dock and USB devices plugged into the dock are not recognized.

    All devices show configured properly in Device Manager and I used System Update to download and install all drivers/utilities. Also, other ports (DVI to external monitor, audio) are working ok on the dock.

    Bios settings don't show anything obvious to me that would affect this but the bios was updated when I ran the system update utility.

    I had been previously using this same setup successfully before.

    Any help would be appreciated.

    Thanks
     
    nivla, Aug 29, 2012
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  2. nivla

    nivla Notebook Guru

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    Quick update - this dock has the 170w power adapter attached and all USB ports on the notebook work properly.
     
    nivla, Aug 29, 2012
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  3. wtlloyd

    wtlloyd Notebook Consultant

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    I can only tell you that over the years, when installing/reinstalling Windows OS, I have had the same thing happen with USB devices left plugged in....in particular, a security dongle for a CAD program - best to strip out all peripherals when setting up a machine, or risk having to format and reinstall all over again....
     
    wtlloyd, Aug 29, 2012
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  4. nivla

    nivla Notebook Guru

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    Thanks, but the install was completed with the system undocked and no external devices connected.

    Is flashing to an older bios possible, would this possibly help and where are the older versions obtained?
     
    nivla, Aug 29, 2012
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  5. Pintu

    Pintu Notebook Consultant

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    I doubt this is a Windows driver issue. If I remember correctly there is a setting in the BIOS that controls Dock ports, so check and/or reset the BIOS. If that doesn't help either the Dock or the Laptop are defect.
     
    Pintu, Aug 30, 2012
    #5