From: dwex@cbnewsj.cb.att.com (david.e.wexelblat) Subject: Re: "hardware" fix to set 3-button serial mouse mode Date: Fri, 30 Apr 1993 19:32:02 GMT
In article <1993Apr26.031031.7889@ee.ubc.ca> edc@ee.ubc.ca (Ed Casas) writes:
> I have a mouse that switches from PC-Mouse (3-button) mode to
> Microsoft (2-button) mode according to the level of the DTR
> handshake line. The default 2-button mode is awkward to use
> under X11.
>
> I found that simply disconnecting the DTR line from my mouse lets
> the line float low (-5V) on the mouse side and sets the PC-Mouse
> mode.
>
> I was able to disconnect DTR by bending a contact on a connector
> inside my mouse. Another possibility would be to make a serial
> connector adapter that does not pass DTR through.
>
> Note that serial mice draw their power through the RS-232 lines
> so if you disconnect too many lines your mouse will stop working.
>
> It worked for me...
>
> --
> Ed Casas (edc@ee.ubc.ca)
XFree86 1.3 will include an Xconfig parameter that causes the server
to handle this kind of mouse automagically.