I read this herehttp://www.raspberrypi.org/phpBB3/viewt ... 125#p81233
I had the same problem but I created a new file in /etc/X11/xorg.d/10-xxxx.conf and put in the text:
Option "AutoAddDevices" "False"
Then my mouse nad keyboard started to work. The problem with this is that you are disabling udev for X. This results in that now hot-plugging is allowed in X.
So the problem is that udev is not loaded correctly. I will look in to this tomorrow and see if i can find a solution.
I had tried this before. It enabled my keyboard to work but still had no luck with my mouse. I also added a Section for the keyboard and mouse.
I found it easier to just start again from scratch and update everything through pacman before playing with X. Picked up the mouse and keyboard first time this way.
I did notice that in the second "pacman -Syu" I performed that there was an update for udev. This then added more input devices into my "/dev/input" folder (with event0 & event1)
What files do you have in your "/dev/input"? First time I only had mice and mouse0. I think i did a "cat mouse0" and it was picking up mouse input, just not in X. If there is nothing you mind losing then I would just start from scratch and run the update twice.