I installed arch on my Asus G750 and for some reason both trackpad buttons are bound to middle click. I am not sure what settings to add to the synaptics driver conf file to fix this. Can anyone point me in the right direction?
You may have done this already, but here are some instructions on how to create the config file for the synaptics touchpad driver. The file described in the wiki has options for setting which button does what. On my laptop I just created the file /etc/X11/xorg.conf.d/50-synaptics.conf and copied the settings listed on the wiki tweaking the settings according to my preferences.
If that is not your problem, perhaps your /etc/X11/xorg.conf.d/10-evdev.conf has a section:
Identifier "Emulate Middle Button"
Option "Emulate3Buttons" "on"
If it does you might try commenting out the entire section.
I did not have a section like that. Any other ideas, I am running out of things I know to try.