Re: DualScreen, 2 cards, AGP and PCI, have to boot from PCI?

From: Dieter Soltau (sprockhoevel_at_web.de)
Date: 08/27/04


Date: Fri, 27 Aug 2004 16:20:24 +0200

Floyd L. Davidson wrote:

> First Step: Take the PCI card out of the machine. Set the BIOS
> to init the AGP card. Boot to single user, or to multiuser
> without X running, and see if you get what you expect from a
> single monitor system. (If not, fix whatever it doesn't do
> before proceeding.) Then try running X, and configure it to
> work correctly with that video card and monitor.
yes, that works. i have already been there.

> Second Step: Put the PCI card into the machine and connect a
> monitor to it. Do *not* change the BIOS. Boot to single user
> or to multiuser without X running. See which monitor Linux
> uses.
it uses the AGP and i see nothing on the PCI card.

> BusID "PCI:00:14:00"
> BusID "PCI:00:13:00"

i have set this, except one card ist AGP here (1:0:0 and the pci 0:b:0).

> If the Xinerama options are uncommented, the two monitors appear as
> one display, host:0.0 to the server. Otherwise the two are found
> in the order listed, as host:0.0 and host:0.1 to the server.
even if xinerama is uncommented, they appear as 0.0 and 0.1. this is
correct, and exactly what i want. uncommenting xnerame behaves the same as
"xinerama" "off". hmm, at least it does here.

> For example, normally a program will be displayed on :0.0, which
> in this case is the MGA video card and its monitor. To access the
> other monitor, and individual program can be invoked from the command
> line like this:
>
> > DISPLAY=:0.1 command
>
> and it will display on the S3VIRGE video card and its monitor.

yes, all of this works fine. but my ttys are on the monitor connected to the
pci card. i dont think i can change this, because X has nothing to do with
those screens. thats why i wanted to boot from my AGP, but then the PCI
card is not inizialized at all.



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