I had the same problem and had to change my protocol from "Logitech" to
"wsmouse" manually in the XF86Config file before it would work properly.

This is what mine looks like:

Section "Pointer"
    Protocol    "wsmouse"
    Device      "/dev/wsmouse"
    ZAxisMapping 4 5
#ZAxisMapping for mouse wheel support



-Jon

On Thu, 27 Jun 2002, Nicolas Saurbier wrote:

> # **********************************************************************
> Thanks, but that doesn=B4t work.
> The mouse is jumping around on the desktop,
> no chance to control it. I have a logitech mouse
> connected to the PS/2 port.
>
> see extract of "XF86Config" below:
>
> # Pointer section
> # **********************************************************************
>
> Section "Pointer"
>     Protocol    "Logitech"
>     Device      "/dev/wsmouse0"
>
> # When using XQUEUE, comment out the above two lines, and uncomment
> # the following line.
>
> #    Protocol   "Xqueue"
>
> # Baudrate and SampleRate are only for some Logitech mice
> # or for the AceCad tablets which require 9600 baud
>
> #    BaudRate   9600
> #    SampleRate 150
>
> # Emulate3Buttons is an option for 2-button Microsoft mice
> # Emulate3Timeout is the timeout in milliseconds (default is 50ms)
>
> #    Emulate3Buttons
> #    Emulate3Timeout    50
>
> # ChordMiddle is an option for some 3-button Logitech mice
>
> #    ChordMiddle
>
> EndSection
>
>
> # **********************************************************************
>
> -----Original Message-----
> From: Peter Seebach [mailto:seebs@plethora.net]
> Sent: Mittwoch, 26. Juni 2002 18:22
> To: netbsd-help@netbsd.org
> Subject: Re: PS/2 mouse
>
>
> In message <24EA9B0638C2AD448F3C2E95E3209ECF7AD2@shrdc1.biodata.com>, "Ni=
colas
> Saurbier" writes:
> >simple question: How do I have to configure a mouse
> >on PS/2 port for X??
> >Com1 =3D /dev/tty00
> >Com2 =3D /dev/tty01
> >ps/2 =3D /dev/??????
>
> Protocol is wsmouse, device is /dev/wsmouse.
>
> -s
>