A)
Xinerama _does_ support open GL, at least with my matrox card, I can have
openGL on one monitor of the two. That is a limitation of the card
hardware, AFAIK, not of X.
Still there are a lot of these cards around so openGL would not be very
useful.
B)ergonomics
Mutli head setups are extremely useful.
I can easily see both monitors without turning my head, and in a glance I
can see the state of several applications. Or I have the documentation in
a browser on one monitor and the app on another. Much easier on the brain
than constantly switching workspaces back and forth.
In a studio there is also a lot of other gear that needs to be watched;
mixing-desk, outboard equipment, talent etc. Using a multihead setup you
can put the transport and the metering on a monitor near the console, and
the editor window on a monitor optimally placed for "desk-work" ergonomics
(eye height, keyboard at the right place etc)
It is also adviced to move your eyefocus around during work to prevent
RSI. (look out a window etc.) Focusing to much on a relatively tiny area
all the time is very bad ergonomics. So head movement by itself is not
bad, the opposite in fact.
Gerard
From: Kjetil Svalastog Matheussen
<k.s.matheussen(a)notam02.no>
Benjamin Flaming:
"People without working hardware acceleration" includes anyone
using more
than one monitor. X refuses to allow hardware acceleration with
Xinerama.
Since multiple monitors are central to my working style (and that of
many
recording studios), using OpenGL could have serious drawbacks.
Programs where it makes sense using two or more monitors are in my opinion
seriously crippled. Its about 2.3 million times faster (rough guess) to
press a key (to switch to another view) than to turn your head. In
addition, you can get wiplash (or something similar) by turning your head
too much. Please explan why I'm wrong, if I am.
--