How to configure dual head & G550
froese at mtu.edu
Fri Sep 5 07:50:23 PDT 2003
I was successful configuring dual-head after much, much googling and some
excellent advice from a very small number of list members. The lack of
documentation both on the XFree86 web site and the FreeBSD site was quite
discouraging. While I find the handbook, for example, quite useful for
general concepts, there are few detailed technical references both published
and informal for FreeBSD.
What I did conclude:
First and foremost, the mgapdesk port does NOT work under 5.1-R. It crashes X
every time. You don't need it though. To get dual-head to work on 5.1-R:
1) add the matrox linux hal driver - I think; I made a couple of simultaneous
changes so I'm not sure it was necessary
2) make appropriate changes to the XF86Config file
There's nothing else. In my searches I came across references to "xinerama"
but after literally an hour trying to find ports/packages for FreeBSD I gave
up and guessed that it was enabled somewhere in FreeBSD by default.
Surprise! Good guess; it was. With xinerama you get a single KDE desktop
stretched across the two screens.
On Friday 05 September 2003 03:58 am, Andre Albsmeier wrote:
> On Wed, 27-Aug-2003 at 17:31:30 -0400, Robert Froese wrote:
> > Hello all,
> > I'm interested in converting my single head Matrox G400 system to a dual
> > head G550 system. I've aquired the hardware assuming it will work, but
> > after a half-hour now looking for instructions I haven't found any. Can
> > anyone point me to some resources that suggest where to begin? I'd
> > greatly appreciate it.
> I can send you my config in private mail. I am running a G550
> connected via DVI to a 46cm LCD. The second head is currently
> configured for a 640x480 output.
> The card is great apart from the fact, that TV-Out doesn't work
> under X11 (only Wincrap) and the Matrox losers don't do anything
> about it. The G400-DH runs fine w.r.t. TV-out (got it at home)
> but the G450 and G550 won't. That's why I'll never by a Matrox
Robert Froese, RPF
Assistant Professor, Forest Biometrics
School of Forest Resources and Environmental Science
Michigan Technological University, Houghton MI.
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