logitech mx700 mouse button disfunction under FreeBSD

Joe Schmoe non_secure at yahoo.com
Wed Jul 6 01:06:21 GMT 2005

The logitech mx700 is a cordless 10-button mouse (3
buttons, two thumb buttons, scroll wheel up and down,
two paging buttons, and one "app" button).

While the mx500 mouse, that seems to be very closely
related to the mx700, has been reported to work
(scroll wheel and both thumb buttons function) under
FreeBSD, and while the mx700 is working in the same
fashion under linux, the mx700 _does not_ function
under FreeBSD.


Using this configuration in your X/Xorg configuration

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/sysmouse"
        Option      "Buttons" "7"
        Option  "ZAxisMapping" "6 7"

along with these startup options for X/Xorg:

/usr/X11R6/bin/xmodmap -e "pointer = 1 2 3 6 7 4 5"
/usr/X11R6/bin/imwheel -b "67" &

and these settings in ~/.imwheelrc :

None, Up, Alt_L|Left,1
None, Down, Alt_L|Right,1

None, Up, Alt_L|Left,1
None, Down, Alt_L|Right,1

You will end up with the three standard buttons
functioning, and the scrollwheel functioning (as
buttons events 4 and 5).  Further, the page up and
down buttons will simply send double-4 and double-5
button events.

However, the other three buttons (thumbs and app
button) will _all send button event 5_.

I have tried every conceivable combination of
Zaxismapping, xmodmap settings, and with and without
imwheel ... no matter what, the three final buttons
(two thumbs and one app button) always produce the
same button event.  Even if you configure 9 or 10
buttons in your X config.  Those three buttons will
ALWAYS send the same button event.

So what is the reason for this ?  Why does the mx500
function and the mx700 does not ?

More importantly, what is a strategy for getting to
the bottom of this and fixing it ?  If you look at the
mailing list archives, there are many, many examples
of people going through this same hell and just giving

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