Back around the time that this thread was started, I had seen a post that suggested trying solution #2 first but with the difference of saving the file as "10
-synaptics.conf" instead of overwriting the existing 50-synaptics.conf as instructed in the OP.
Following that suggestion brought my touchpad back to its "old self".
(I did experience quite a bit of KDE crashes and other strange behavior since then, but that may have started before the touchpad fix and/or the update that necessitated it in the first place. I can't recall with any certainty. I recently wiped the drive that had that 2011 PCLOS installation)
I now tried that same solution #2 (with the change described above) while running 2012.02 KDE live, and while it fixed the touchpad, it caused me to lose sound
(I found that merely logging-out and then back in again was sufficient, as I obviously couldn't reboot while running live)
Does anyone know of a way to fix the touchpad issue without losing sound?
Hardware is a Dell Inspiron B120.
Regarding solution number 3:
[...]Solution 3 won't allow me to login with the graphical interface and I get errors when trying startx.
author=AS link=topic=93782.msg843814#msg843814 date=1321148119]
please reconsider the solution 3, note that the syntax is not correct in the example:
should be written as:
Option "LeftEdge" "120"
similar syntax for the other 3 options.
Shouldn't the OP be edited accordingly?
I had the same experience that "doctore" described in the quote above.
Thanks as always to everyone involved with PCLOS.