The location of your configuration file for X depends on the particular
release and distribution you have. It will probably be either /etc/Xconfig,
/etc/XF86Config or /usr/X11/lib/X11/XF86Config. You should see which
one it is when you start X - it will be echoed to the screen before all
the options are displayed. The syntax is slightly different between the
XF86Config and Xconfig files, so both are given.
#
# Mouse definition and related parameters
#
Microsoft "/dev/mouse"
Emulate3Buttons
MouseSystems Three Button Serial Mouse
XF86config:
Section "Pointer"
Protocol "mousesystems"
Device "/dev/mouse"
ClearDTR # These two lines probably won't be needed,
ClearRTS # try without first and then just the DTR
EndSection
Xconfig:
#
# Mouse definition and related parameters
#
MouseSystems "/dev/mouse"
ClearDTR # These two lines probably won't be needed,
ClearRTS # try without first and then just the DTR