serial mouse under knoppix ?

[Lennart Sorensen]

On Sat, Apr 03, 2004 at 12:07:20PM +0200, Peter L. Peres wrote:
> I have a problem with a serial mouse under knoppix. The mouse is on ttyS1.
> It requires expert startup and configuring (including XF86Config) but then
> it does not work. While in X11 the config is the right one and shows the
> mouse as serial on ttyS1. The pointer is frozen in the screen center.
> Setting the same settings in gpm in a console works perfectly (mouse
> works, all is well). It's a plain ms protocol serial mouse with 3 buttons.
> Any ideas ?

There is actually no such thing as a 'ms protocol 3 button mouse' at
least not serial.  The ms serial protocol only allowed for 2 buttons in
general, although logitech did something to the protocol to allow their
mice to run 3 buttons with logitech's driver.  Most 3 button serial mice
either have a switch to select MS (2 button) or MouseSystems (3 button)
protocol.  Those without a switch would often default to MS but could be
switched to MouseSystems mode either by holding the left button on power
on (or when connecting the mouse if already on), in which case the
mousesystems option in gpm would allow for 3 buttons.  Some also could
be switched with gpm using the RTS/CTS signals on the serial port.

If both gpm and X are configured for ms protocol (not ms3 or anything
fancy) then they should work (unless they don't want to share).  Using
the gpm repeater pretty much always works.  You configure X to use
/dev/gpmdata and add the -R option to gpm, and set the repeater protocol
to whatever you set X to use as protocol (ms3 (serial intellimouse)
seems to be one of the ones that work well in gpm for repeating.)

Lennart Sorensen
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