[arch-general] Some synaptics multitouch functionality lost on upgrade

[Scott Lawrence]

MacbookPro5,4.

After an upgrade a few days ago, which included an update to 
xf86-input-synaptics-1.5.99.901-1, I've lost the ability to right click by 
clicking with two fingers. Interestingly, I can still right-click by /tapping/ 
with two fingers, and everything else is working unaffected (including 
two-finger scrolling). Any hints as to what triggered the change, and how to 
fix it? Various searches shed no light on this.

Nothing interesting is in Xorg.0.log, xinput's output seems ordinary, and I 
don't see any options offered by synclient that would change this behaviour. 
Anywhere else to look? (I'm about to try enabling shmconfig and see what 
synclient -m gives.)

(I'm not a fan of mtrack at all; I'd much rather get the input-synaptics stuff 
working properly again.)

Thanks.

-- 
Scott Lawrence

Linux jagadai 3.2.9-1-ARCH #1 SMP PREEMPT Thu Mar 1 09:31:13 CET 2012 x86_64 Intel(R) Core(TM)2 Duo CPU P8700 @ 2.53GHz GenuineIntel GNU/Linux