I just installed Funtoo on my new laptop. I have installed Funtoo in the past, but never on a laptop with only USB3 ports - and I think this may be related to the problem I'm having.
Installing the base system was a breeze, then I installed X. I tested it as per http://www.funtoo.org/X_Window_System; in twm the keyboard was working but the mouse pointer wouldn't move (I use a Logitech M325 mouse with USB dongle). In fact it only *apparently* wouldn't move; the pointer on the screen remained in a fixed position, but by moving the mouse I could in fact shift focus to one or the other of the xterms on the screen (even though the visible pointer wasn't over them).
I then installed xfce4, and again the mouse pointer won't move even though I can select things on screen by blindly moving the mouse.
The output of 'zcat /proc/config.gz | grep EVDEV' shows:
I did emerge xf86-input-evdev, but it didn't change the mouse behavior at all.