On Oct 23, 2009, at 4:50 PM, Jesse Keating wrote:
On Fri, 2009-10-23 at 11:58 -0700, Andrew Sweger wrote:
I am currently using two displays on my workstation running Ubuntu.
The
displays are connected to a nvidia GeForce 7300 LE card, one using
DVI and
the other VGA. It seems to work great with Ubuntu and its settings
tool
for nvidia cards (I never once had to crack open xorg.conf). But I
have
three monitor available (one used to be for Windows). Does anyone
know how
well Ubuntu supports cards with more display connections? For
example, the
ATI FirePro 2450 with four DVI connections. My goal is to have one
huge
desktop spanning across all three displays (and maybe aim the
fourth one
at a projector).
Ubuntu should as X does. xrandr (and it's various graphical front
ends)
are your friend here, provided that card is supported by opensource
drivers, or the closed source one has the xrandr hooks.
"Should" and "does" are highly dependent on your video driver...
I've found that my laptop with onboard intel graphics plus either of a
radeon or nvidia card in my docking station doesn't yield more than
the two heads provided by the onboard intel video working (doesn't
work under windows either though).
Two nvidia cards using the nouveau driver is a guaranteed panic for me
(nouveau is still relatively young, not entirely surprising).
Two nvidia cards using the binary nvidia driver is the only
combination I've successfully run quad-head on to this point. Even
that is quirky though, as TwinView is (unsurprisingly) limited to 2
heads, so you have to have two TwinView setups spanned by xinerama...
--
Jarod Wilson
[email protected]
