RELENG_7 jerky mouse and skipping sound

[[LoN]Kamikaze]

I have rebuilt all xorg stuff over night and it didn't help. The only way to
avoid the jerkiness is having those lines in /etc/rc.conf:

moused_nondefault_enable="NO"
moused_enable="NO"

I have configured my /usr/local/etc/X11/xorg.conf to contain the following
lines in the Mouse section:

Option "Protocol" "auto"
Option "Device" "/dev/ums0"

I'm using a USB mouse.


What I think is the most likely cause, is that there's something wrong with
moused, so that /dev/sysmouse feeds xorg broken signals that somehow are not
handled appropriately.