[MPlayer-users] adapter option with gl2 output on windows

[Reimar Döffinger]

On Tue, Mar 31, 2009 at 09:03:20AM -0400, Morris Beverly wrote:
> Since my first monitor is larger than the rest, I can't (or at least I 
> don't think I can) use nvidia TwinView, or whatever they call it, to 
> "span" the 2 monitors on one card into a single "virtual monitor", for 
> lack of a better term.  I instead use the nvidia control panel to set 
> all 4 monitors up as independant displays.  Then, in windows, I extend 
> my desktop onto each monitor.  This is done by right clicking the 
> desktop, choosing properties and then settings to get to the windows 
> display setup tab and clicking the "extend my windows desktop onto this 
> monitor".

Then you chose your terms very badly, "Independent Displays" is defined
here:
http://msdn.microsoft.com/en-us/library/dd145179(VS.85).aspx
and it means using them _without_ expanding the desktops to them.
That makes using them very similar to a printer (except with a much
better refresh rate :-P ).

> Finally, my ultimate goal is to be able to start 3 different mplayer 
> instances, on monitor number 2, 3 and 4.

-geometry to tell them where to start (in Window's virtual screen
coordinates), and -xineramascreen to specify which one to use for
fullscreen (for that the default is -1, which is the screen it is
currently on).
I am not aware of any issues with that, no idea why -geometry did not
work for you...

> A secondary goal is to be able 
> to have an mplayer window spread across 2 or more monitors in certain 
> situations.

-xineramascreen -2 to spread across all monitors.
-noborder and -geometry might work out, too, if you do not need aspect
adjustment.
This case is difficult in the general case, because two or more monitors
together might not make up a rectangle in the virtual screen space.