i m standing for exactly the same problem.
In xorg.conf have no mouse entries - wheel up/down is ok left and right is ok sidebuttons ok too
but middle mouse button is dead.
Any solutions for this??
I have three xorg.conf entries for the same mouse on
different installations;
Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
EndSectionSection "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSectionSection "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mouse0"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSectionMouse is a MS IntelliMouse USB/PS/2 Compatible. The same settings work for Logitech IR cordless mouse. All sets of instructions work the same, ie all buttons work as they should. These may have been generated by the nVidia setup tool. I'm not sure how they got there, and as long as they work, really don't care.
You might want to edit your /etc/X11/xorg.conf file as root, and try each, in turn to see if any one helps. Worst case, they don't and you remove them. Best case, one gets your mouse working right.