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[64 bit] ubuntu hangs /crashes whenever touchpad is used.

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linux-howto

http://ubuntuforums.org – hello to all I have a Compaq laptop ( c795tu) .Ubuntu 9.10 runs perfectly on it except for one problem. Whenever I touch the touch pad the system crashes . The caps lock led indicator starts blinking and i think it would remain doing so forever if I do not force shut-down the laptop by pressing power button.during this time (until I restart it) nothing will respond, keyboard, touch pad, mouse nothing.So I have to use a usb mouse to work with it.If I don't touch the touch-pad nothing will happen , it will run smoothly for day /night even for years, I think. touch-pad --- Alps Touch-pad thank you . (Hardware)