Re: dual head Matrox
Hamish,
> Anyone got dual headed Matrox G400 working with X (in dual
> head mode)? It seems that XFree86 4.0 doesn't yet support this directly, but
> I was hoping to use the linux frame buffer support to do it.
I have gotten it to work using the beta driver available from Matrox's
web site (http://www.matrox.com/mga/drivers/files/linux_01.htm).
I used this in my XF86Config:
Section "Device"
Identifier "Matrox G400 Dual - 1"
Driver "mga"
BusID "PCI:1:5:0"
Screen 0
# VideoRam 32768
# Insert Clocks lines here if appropriate
EndSection
Section "Device"
Identifier "Matrox G400 Dual - 2"
Driver "mga"
BusID "PCI:1:5:0"
Screen 1
# VideoRam 32768
# Insert Clocks lines here if appropriate
EndSection
Section "Screen"
Identifier "Screen 1"
Device "Matrox G400 Dual - 1"
Monitor "PS790"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
ViewPort 0 0
EndSubsection
EndSection
Section "Screen"
Identifier "Screen 2"
Device "Matrox G400 Dual - 2"
Monitor "SGI Color"
DefaultDepth 16
Subsection "Display"
Depth 16
Modes "1024x768"
ViewPort 0 0
EndSubsection
EndSection
Section "ServerLayout"
Screen "Screen 1" RightOf "Screen 2"
Screen "Screen 2"
EndSection
The two monitors are defined in the "Monitor" Section. There's a
readme of some sort in the Matrox package that explains how to find
the BusID's for the two heads. I think it's printed as part of the
X startup stuff (startx 1> x.log 2> x.err).
A couple points:
* From what I've read, the second head isn't accelerated (hardware)
* Enlightenment didn't work with the second head, but sawfish did.
If you figure out how to get E to see the second head, let me
know!!
Chris
--
Christopher S. Swingley tel: 907-474-2689 cell: 322-1889
Programmer / Analyst email: cswingle@iarc.uaf.edu
University of Alaska Fairbanks www.frontier.iarc.uaf.edu/~cswingle
Fairbanks, AK 99775
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