I have a Sony Vaio vpceb1jfx and its quite old. Suddenly the touchpad went crazy and started clicking and moving around constantly.
I tried everything to make it stop, but I couldn't. I have formatted it several times and tried everything.
Now, I ended opening the notebook and unplugging the cable that connects the touchpad to the motherboard. Hoping that the mousepad would stop and I could control the pointer with an usb mouse.
But what happens is the computer not detecting the USB mouse at all (or is it? it doesn't even show a message when plugging or unplugging). I have windows 8.1 now.
In the device manager, under "mice and other pointing devices" it shows some kind of touchpad driver, but is in yellow sign and not working. (says it is not present)
It is strictly necessary to have the touchpad connected to move the pointer? even with an usb mouse? Or the problem is with the usb mouse? I've installed the motherboard drivers. And the touchpad drivers too. Maybe is there a way to "emulate" a mouse device, and control it with the usb mouse?
It's a complicated problem, but any help would be appreciated.