How could this cause a USB problem?

Ardan

Senior member
Mar 9, 2003
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I am not sure but this must have been a driver issue, but I didn't update anything. Well I guess that I used WindowsUpdate a month ago and then my USB mouse would quit working. What had happened was i'd leave my PC on (as always) and then maybe i'd come back to it 2 hours later. The monitor goes into standby of course and if you move the mouse or hit the keyboard it comes back (as we all know) but what would happen is the mouse would quit working. I initially realized it was doing that on a Saturday afternoon when I walked back to my PC and my mouse ceased to work until I rebooted (I use WinXP Pro). So what I did was I made sure that nothing turned off except the monitor. It still stopped and it only stopped after a certain period of inactivity. I went into the BIOS to investigate a few weeks ago and disabled support for USB Legacy devices and it solved the problem.

It hasn't done this for 3 weeks now...but i'm confused, why could this suddenly cause a problem? I am at a loss for an explanation, because I don't think I directly updated the USB drivers at any point in time. The windows updates were security updates as well. Upon thinking back, I updated the BIOS (MSI KT4VL) in January to solve an issue (it did solve it too) and installed updated 'Hyperion' drivers. Both did wonders for my PC, could they have caused it? The USB issue became known in late February though. I also noticed that if I navigated into the device manager after the mouse froze up that if I disabled the USB 2.0 device, all the other USB devices went down and I could re-enable the USB2 hub...but not the other USB root hubs. This doesn't occur when the mouse is working and the light on the mouse is on after it freezes. I am trying to figure out what caused it and why so that I understand it more if anyone comes to me with a similar issue. Anyone have any thoughts on this issue or do know what it was?