Two mice with different sensitivity

[Paul Vojta]

On Thu, Sep 07, 2006 at 09:35:24PM -0400, James M Leddy wrote:
> I don't see why we can't have two different mice with two different
> acceleration values.  Resolution seems to be something different,
> especially if it's driver dependent and has only values of 200, 100, 50,
> 25.  Four choices of acceleration doesn't seem right.

Well, how do you choose between the two mice (i.e., how do you communicate
to the server which mouse to use)?  If on the command line, you can also
use the -a argument to set the acceleration (as in "xset m").

I'm not sure that acceleration would be the right thing to look at, though.
It only kicks in when you move the mouse (or trackball) quickly.  Do you
have the right degree of fine control on the trackball?

Quoting someone else, he wrote:
> Unfortunately "Resolution" does not seem to have any effect for these
> mice.  With my simplistic view of the problem it seems that an option
> such as "Resolution" could easily be implemented in a device
> independent manner.  What's the hang up?  Why does it only work for
> some mice. BTY I am using the "ExplorerPS/2" protocol.

Then resolution should have an effect.  It indeed could be done easily in
a device independent manner, but so far that has not happened.  As for the
"resolution" option, that is part of the PS/2 spec, and is sent to the
hardware (and therefore is device dependent).

--Paul Vojta, vojta at math.berkeley.edu