On Wed, Aug 22, 2012 at 3:50 PM, Fedora User <fedora...@gmail.com> wrote:
>
> What on earth is the difference between "absolute" and "clone of?"
>
> Furthermore, and I am reasonably sure that this is a dumb question but I
> have a brain freeze; Suppose I configure the second monitor above, how
> would I get, say, mplayer to play a movie in that space? How do I get
> the mouse up there?

XRandR works on a logical display which is typically 8192 pixels by
8192 pixels.  Each monitor placed anywhere within that range.
Specifying "absolute [x/y]" mode for a port/monitor allows you to
place your bottom left pixel of your monitor to any pixel within it's
logical range.

Specifying "clone of [port]" indicates that the bottom left pixel of
that monitor is in the same place as the bottom left pixel of the
monitor attached to [port].  This is useful for projectors, for
example.

If you want one monitor above the other, you can do it by specifying
"absolute 0/0" for monitor-1 and "Above [monitor-1-port]" for
monitor-2.  You could specify an absolute position for monitor-2, but
then you'd have to start plugging appropriate values for the position.

Once you have done this, you can just drag windows between the
monitors as you might expect/hope.
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