Windows XP forum: Laptop USB ports stopped working

by: gashomme January 1, 2006 1:44 AM PST

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Laptop USB ports stopped working

by gashomme - 1/1/06 1:44 AM

I have a Sony VGN-T1XP Vaio laptop with an Intel Pentium M Processor running XP Pro SP2. For some reason the two USB ports have stopped working and no USB devices are recognised. I have looked at the device manager under USB controllers and there are four USB controllers listed which are as follows:

Intel 82801DB/DBM USB 2.0 enhanced host controller 24CD
Intel 82801DB/DBM USB universal host controller 24C2
Intel 82801DB/DBM USB universal host controller 24C4
Intel 82801DB/DBM USB universal host controller 24C7

Underneath those are four USB root hubs.

I have previously used a USB card reader and external hard drive on both ports without any problems but now when I connect any device nothing at all happens.

I have deleted and reinstalled the USD controllers to no avail and I have created a new user account but this has an identical hardware profile as the main user account.

I suppose I could reset the machine back to the factory settings but would prefer to avoid this.

I have tried to be as specific as possible but I dont really know much about what I am doing so apologies if I have omitted something.

Can anyone help please?

Thanks and Happy New Year!

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