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Help! USB devices not recognised unless plugged in at boot-up

  • 10-03-2007 11:59am
    #1
    Bard
    Registered Users, Registered Users 2 Posts: 12,309 ✭✭✭✭


    Hi,

    I'm using a Toshiba Satellite P10-804 laptop running Windows XP Pro SP2. It's got 3 built-in USB ports - which I have a problem with...

    They're not recognising any USB devices that I plug into them UNLESS the device was plugged in when the laptop was booting up.

    Has anyone any idea why this would happen and/or how I can sort it out?

    Cheers,


Comments

  • #2
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 92,400 Mod ✭✭✭✭Capt'n Midnight


    If you go into device manager click on the computer and refresh does it pick them up again

    can't remember the service that (re)detects USB on the fly


  • #3
    Bard
    Registered Users, Registered Users 2 Posts: 12,309 ✭✭✭✭Bard


    It doesn't pick them up then, no... but it does if I reboot.

    (Although if I then unplug and plug back in the device while windows is loaded, it doesn't pick them back up again until the next reboot)

    I'm thinking it's probably a USB drivers thing, but I'm not really sure... there's no "!" or "?" in Device Manager - everything appears to be OK...


  • #4
    NeoRox
    Registered Users, Registered Users 2 Posts: 606 ✭✭✭NeoRox


    Have you tried removing the usb controllers from device manager and letting windows reinstall them automatically.


  • #5
    Bard
    Registered Users, Registered Users 2 Posts: 12,309 ✭✭✭✭Bard


    NeoRox wrote:
    Have you tried removing the usb controllers from device manager and letting windows reinstall them automatically.
    Yes, tried that. When I did it, it also detected the USB devices (including a 2GB USB key) and they worked there and then.

    I then unplugged the USB Key and plugged it back in and it didn't work... until the next reboot (basically it went back to the way it was...)


  • #6
    NeoRox
    Registered Users, Registered Users 2 Posts: 606 ✭✭✭NeoRox


    Are different devices regularly plugged into different ports eg. usb key in one port then took out and extenal hdd plugged in. if so the ports are confused, the only solution i've ever found for this was a format,maybe this is not your exact situation but I think that could be your problem.


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