If there is a better place for this query, I'd be happy for a moderator to move it. I shall be very grateful if anyone can suggest what I should try next.
I installed Mint Debian Gnome 32 bit on my Acer Aspire One 150 ZG5 about six months ago and it has performed fine for that period, being updated to update pack 3. But in the last fortnight (I do not remember changing any settings) the trackpad and usb mouse have begun to malfunction after some minutes of turning on and logging in, and sometimes immediately. The left-click button ceases to work after a variable length of time, rendering the system almost unusable. Right-click still works, and middle-click (on the attached USB mouse), and I can two-finger scroll up and down. I have dismantled the machine and trackpad, reseated the cable, the fault remains. I have used synaptic to reinstall xorg-input-trackpad, the fault remains. I've googled extensively, (but possibly not terribly effectively), and I've discovered some others complaining of similar problems as far back as 2009, but I haven't found a solution. (As I say, I may not be the world's best googler, as I tend to find myself drowning in irrelevant entries rather than finding the pinpoint relevant one which may be out there somewhere.)
Running slitaz I find the same fault on the touchpad, which might point to a hardware fault if it wasn't that I have a usb mouse which works plugged into other working machines and also *works* in this case. Why then does it *not* work using Mint Debian? Also the fact that left-click sometimes works for some minutes after first switching the machine on suggests it is not a simple hardware failure.
I've also tried an old live cd 'Kuki linux 2.8', which exhibits the same problem on both touchpad and mouse.
I shall be very grateful for any suggestions.
All the best,