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Thread: USB not detected...

  1. #1
    Join Date
    Apr 2011
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    14

    USB not detected...

    Hello, I just installed Ubuntu 10.04 on my IBM ThinkPad, and when I plug a USB drive into the laptop, nothing happens. ? How can I fix this?? Thanks.

  2. #2
    Join Date
    Aug 2006
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    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: USB not detected...

    Can you post the output of dmesg | tail. What file system is there on the usb drive?

  3. #3
    Join Date
    Apr 2011
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    14

    Re: USB not detected...

    Quote Originally Posted by mikewhatever View Post
    Can you post the output of dmesg | tail. What file system is there on the usb drive?
    Wow, this doesn't look good...

    [ 277.716395] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 277.960107] usb 1-4: new high speed USB device using ehci_hcd and address 22
    [ 278.028405] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 278.216435] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 278.404439] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 278.592441] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 278.780434] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 278.968435] hub 1-0:1.0: unable to enumerate USB device on port 4
    [ 279.212167] usb 1-4: new high speed USB device using ehci_hcd and address 28
    [ 279.280315] hub 1-0:1.0: unable to enumerate USB device on port 4

    I think it formated as FAT32.

  4. #4
    Join Date
    Aug 2006
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    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: USB not detected...

    There is a bug report about this issue, and post #74 suggests a solution.
    https://bugs.launchpad.net/ubuntu/+s...ux/+bug/256767

    ... and here is another:
    http://www.absolutelytech.com/2010/0...ling-ehci_hcd/

  5. #5
    Join Date
    Apr 2011
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    14

    Re: USB not detected...

    Quote Originally Posted by mikewhatever View Post
    There is a bug report about this issue, and post #74 suggests a solution.
    https://bugs.launchpad.net/ubuntu/+s...ux/+bug/256767

    ... and here is another:
    http://www.absolutelytech.com/2010/0...ling-ehci_hcd/
    Thanks it worked! Problem solved!

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