Mouse stopped working in X

[Warren Block]

On Fri, 18 May 2012, J. W. Ballantine wrote:

> Before the update of x11 on 4/21/2012, X was working fine, but now
> when I startx, my usb and touchpad mouse are no longer found.  The
> mouse works in terminal mode, and hald and dbus are started in
> /etc/rc.conf.
>
> I rebuilt x11, but that had no effect, any ideas on what I might
> do to get the mouse working again?

> (EE) xf86OpenSerial: Cannot open device /dev/psm0
> 	Device busy.
> (EE) PS/2 Mouse: cannot open input device
> (II) UnloadModule: "mouse"
> (EE) PreInit returned NULL for "PS/2 Mouse"
> (EE) config/hal: NewInputDeviceRequest failed (8)
> (II) UnloadModule: "kbd"

For a test, comment out the mouse InputDevice section and the entry in 
the ServerLayout section.  X doesn't need them.