On Tue, 11 Nov 1997 20:52:02 -0500 (EST),
Armen Babikyan <synapse@lethargy.mit.edu> wrote:
> In MacOS, removing the monitor prevents the mouse from moving off
> the side of the screen. however, in NetBSD, when i only had one
> monitor for awhile, but two video busses, (and the monitor was only
> connected to one bus), the Xserver still recognized my "other"
> monitor, because there was a whole screen-full of scrolling all the
> way around the sides of the screen (and it wasn't the buggy xserver
> that let the cursor go around one of the sides of the screen) has
> anyone else noticed this "problem"? seems to me that the kernel or
> the xserver can't tell if there's a monitor attached like MacOS can
> (or if it can tell, it doesn't do anything about it.)

Well, since the kernel doesn't bother to tell whether or not there's a
monitor attached to your video port, there's no way for the Xserver to
tell whether or not.

In the future, there may be a server option to specify grf devices to
use (or not to use). 

Ken