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Tips: set up middle button of the mouse which doesn't work

 
    
set up middle button of the mouse which doesn't work:

[terrence@igloo terrence]$ man gpm

...
    -R name
              Causes  `gpm'  to act as a repeater: any mouse data
              received while in graphic mode will be produced  on
              the fifo `/dev/gpmdata' in protocol name.  In prin­
              ciple, you can use the same names as for  the  `-t'
              option,  although repeating into some protocols may
              not be implemented for a while.  In  addition,  you
              can  specify `raw' as the name, to repeat the mouse
              data byte by byte, without  any  protocol  transla­
              tion.   If  name  is omitted, it defaults to `msc'.
              Using gpm in repeater mode, you can configure the X
              server  to  use  its  fifo  as a mouse device. This
              option is useful for bus-mouse owners  to  override
              the  single-open limitation. It is also an easy way
              to manage those stupid dual-mode mice  which  force
              you  to  keep the middle button down while changing
              video mode. The option is forced  on  by  the  `-M'
              option.
...


[root@esker /root]# cat /etc/rc.d/init.d/gpm 

...
        if [ "$MOUSETYPE" = "Microsoft" ]; then
                MOUSETYPE=ms
        fi

        if [ -n "$MOUSETYPE" ]; then
                daemon gpm -R -t $MOUSETYPE
        else
                daemon gpm
        fi
...


[root@esker /root]# ls -al /dev/gpm*         
srwx------    1 root     root            0 Mar 16 10:41 /dev/gpmctl
prw-r--r--    1 root     root            0 Mar 16 10:56 /dev/gpmdata


[root@esker /root]# cat /etc/X11/XF86Config

...
# **********************************************************************
# Pointer section
# **********************************************************************

Section "Pointer"
    Protocol    "MouseSystems"
    Device      "/dev/gpmdata"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Protocol   "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice

#    BaudRate   9600
#    SampleRate 150

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

#    Emulate3Buttons
#    Emulate3Timeout    50

# ChordMiddle is an option for some 3-button Logitech mice

#    ChordMiddle

EndSection
...

Tips: -R doesn't support Microsoft protocal correctly. So gpm should
be run without "-t" option. Protocol is still "MouseSystems" in 
XF86Config.

Enjoy middle button of the mouse!!!
Google