Touchpad not working

Hi all,

I have a Toshiba Satellite S55 series machine, and I'm running 14.-04 on it. This machine seems to have a number of odd hardware issues, and one of them is that the touchpad isn't working since I did a clean install of 14.04. Previously, it was working with 13.10, and it still worked through an _upgrade_ to 14.04, but then I had to rebulid it from scratch, and it's not worked since. My first assumption was that this was purely hardware that had somehow just died, and I'd just have to live without the pad (which is a horrible pad anyway, as its location is such that when touch-typing, one tends to hit the stupid thing with the base of one's hands, and it "warps" the pointer to stupid places. But after an abortive attempt o do the install, I reinstalled the windows that came with it for five minutes (literally, just long enough to test something out) and \under windows, the mouse pad did notwork during the initial part of the installation (I had to use the touch screen to click on buttons), but part way through, it came to life, and was seemed rock solid again. After I then replaced this with Ubuntu, the pad is again non-responsive.

Any suggestions? Is this somehow hiding from auto-probing, and if so, is there a way to force this into life?

TIA
Simon

Well, it seems that one of the regular patches has fixed this... At least, my touchpad is magically working again :)

I had a Satellite M645 pull a similar trick