MacBookPro6,2 touchpad click stopped working (14.04.2 LTS)

I've been running Ubuntu Studio (so my DE is Xfce) on my MBP smoothly for about a month but recently the touchpad click has stopped working. The touchpad still physically clicks (and the battery isn't swollen) andit is still able to move the cursor around the screen, but all my clicking abilities have disappeared (even in the login screen) so I've had to plug in an external mouse (but I'd really like not to have to). I've recently installed the latest Ubuntu Studio updates. I'm currently running the 14.04.2LTS on the 3.13.0-46-lowlatency kernel. I've already tried disabling ignoring duplicates in the /usr/share/X11/x.org.cond.f/50-synaptics.conf file.

Here are my relevant logs from /var/log/Xorg.0.log:

[ 21.146] (II) config/udev: Adding input device bcm5974 (/dev/input/event8)
[ 21.146] (**) bcm5974: Applying InputClass "evdev touchpad catchall"
[ 21.146] (**) bcm5974: Applying InputClass "touchpad catchall"
[ 21.146] (**) bcm5974: Applying InputClass "Default clickpad buttons"
[ 21.146] (**) bcm5974: Applying InputClass "Disable clickpad buttons on Apple touchpads"
[ 21.146] (**) bcm5974: Applying InputClass "touchpad catchall mine"
[ 21.146] (II) Using input driver 'synaptics' for 'bcm5974'
[ 21.147] (**) bcm5974: always reports core events
[ 21.165] (II) synaptics: bcm5974: found clickpad property
[ 21.165] (--) synaptics: bcm5974: x-axis range -4460 - 5166 (res 0)
[ 21.165] (--) synaptics: bcm5974: y-axis range -75 - 6700 (res 0)
[ 21.165] (--) synaptics: bcm5974: pressure range 0 - 256
[ 21.165] (--) synaptics: bcm5974: finger width range 0 - 16
[ 21.165] (--) synaptics: bcm5974: buttons: left double triple
[ 21.165] (--) synaptics: bcm5974: Vendor 0x5ac Product 0x236
[ 21.165] (--) synaptics: bcm5974: touchpad found
[ 21.165] (**) bcm5974: always reports core events
[ 21.180] (II) XINPUT: Adding extended input device "bcm5974" (type: TOUCHPAD, id 11)
[ 21.180] (**) synaptics: bcm5974: (accel) MinSpeed is now constant deceleration 2.5
[ 21.180] (**) synaptics: bcm5974: (accel) MaxSpeed is now 1.75
[ 21.180] (**) synaptics: bcm5974: (accel) AccelFactor is now 0.017
[ 21.180] (**) bcm5974: (accel) keeping acceleration scheme 1
[ 21.180] (**) bcm5974: (accel) acceleration profile 1
[ 21.180] (**) bcm5974: (accel) acceleration factor: 2.000
[ 21.180] (**) bcm5974: (accel) acceleration threshold: 4
[ 21.181] (--) synaptics: bcm5974: touchpad found
[ 21.181] (II) config/udev: Adding input device bcm5974 (/dev/input/mouse2)
[ 21.181] (**) bcm5974: Ignoring device from InputClass "touchpad ignore duplicates"