man mouse
Option "Emulate3Buttons" "boolean"
Enable/disable the emulation of the third (middle) mouse button
for mice which only have two physical buttons. The third button
is emulated by pressing both buttons simultaneously. Default:
on, until a press of a physical button 3 is detected.
On Thu, Aug 23, 2012 at 12:08:20AM -0400, Ted Unangst wrote:
> I have a laptop with two buttons. To middle click, I click both at
> the same time.
>
> Until, in a fit of stupidity, I plugged in a USB mouse and clicked the
> real middle button. Now, the middle button emulation has oh so
> helpfully disabled itself. Except I'm no longer using the mouse.
>
> I'm not sure if I should file a bug report or just ask for help.
> I think it's kind of stupid to disable emulation, precisely because of
> the situation I find myself in. But never mind that, how do I turn
> emulation back on?
