Touchpad stopped working /KDE 4.3.5

It seems that the touchpad has stopped working on my Acer travelmate 2490. I don’t use it often, so that I am not sure when it occurred, but I suspect it was after my update to KDE 4.3. :disapointed:

Can anyone help me to troubleshoot this one?

Try this: then post the screen outputs here.

…sometime the solution is right in front of one’s nose! I must have pressed the wrong key combination at one point without noticing it :embarrassed:

…but I did not hit on that until I had worked all the way down to the very last point (6.) of the troubleshooting guide :rolleyes:

…so many thanks for the tip; it did the trick!