I have installed lubuntu 14.04 both on my desktop computer and on my laptop. On my desktop computer, I have an old ball type ps2 mouse, which now starts to fail (cable problems). My optical usb mouse which works perfectly on my laptop, will not work on my desktop computer; I tried all different usb ports , tried pluggin in before and after boot .. the light is on, the mouse does not work. Any idea?
you need to try other usb device at first as flash usb or any other , if they also stopped so you need to check your BIOS option to active usb control
start your computer and press Delete key when you see the first black screen then (if you have other option to open bios do it) then choose > integrated peripherals , go to usb controller by keys up down and press enter then make it enabled press enter and save your BIOS f10 , it will work