Check which driver extensions are loaded using: tce-status -i | grep xf86
I suggest you try with xf86-input-evdev loaded, but not xf86-input-libinput or xf86-input-mouse and see what happens.
(I assume 01-mouse.conf is placed in /usr/local/share/X11/xorg.conf.d)
Also, it would be good to check which input your mouse is using with this: dmesg | grep ttyS