Two nVidia cards, three monitors: what should I do with my xorg.conf?

synthead · 2011-09-14 16:22:00

I have no problem configuring an xorg.conf and restarting the server a couple times, but I can't find what PCI bus ID the second card is on. I heard that X -scanpci would tell me, but ...

$ X -scanpci
Unrecognized option: -scanpci

Here are my two cards:

00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
02:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 SE/7200 GS] (rev a1)

What do I do from here?

Last edited by synthead (2011-09-14 16:24:30)

karol · 2011-09-14 16:40:29

synthead wrote:

Here are my two cards:

00:0d.0 VGA compatible controller: nVidia Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
02:00.0 VGA compatible controller: nVidia Corporation G72 [GeForce 7300 SE/7200 GS] (rev a1)

What are those numbers / letters on the left?

Last edited by karol (2011-09-14 16:42:09)

synthead · 2011-09-14 16:54:18

That's what I thought Here's what I have so far. With this config, I only get the left monitor:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 260.19.12  (buildmeister@builder101)  Fri Oct  8 11:46:43 PDT 2010

Section "ServerLayout"
	Identifier     "Layout0"
	Screen      0  "Left" 0 0
	Screen      1  "Middle" RightOf "Left"
	Screen      2  "Right" RightOf "Middle"
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"
	# generated from default
	Identifier     "Mouse0"
	Driver         "mouse"
	Option         "Protocol" "auto"
	Option         "Device" "/dev/psaux"
	Option         "Emulate3Buttons" "no"
	Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
	# generated from default
	Identifier     "Keyboard0"
	Driver         "kbd"
EndSection

Section "Monitor"
	Identifier     "Left"
EndSection

Section "Monitor"
	Identifier     "Middle"
EndSection

Section "Monitor"
	Identifier     "Right"
EndSection

Section "Device"
	Identifier     "Expansion VGA"
	Driver         "nvidia"
	BusID          "PCI:2:0:0"
	Option         "UseDisplayDevice" "CRT-0"
EndSection

Section "Device"
	Identifier     "Expansion DVI"
	Driver         "nvidia"
	BusID          "PCI:2:0:0"
	Option         "UseDisplayDevice" "DFP-0"
EndSection

Section "Device"
	Identifier     "Onboard VGA"
	Driver         "nvidia"
	BusID          "PCI:0:D:0"
EndSection

Section "Screen"
	Identifier     "Left"
	Device         "Expansion VGA"
	Monitor        "Left"
	DefaultDepth    24
	SubSection     "Display"
	    Depth       24
	EndSubSection
EndSection

Section "Screen"
	Identifier     "Middle"
	Device         "Expansion DVI"
	Monitor        "Middle"
	DefaultDepth    24
	SubSection     "Display"
	    Depth       24
	EndSubSection
EndSection

Section "Screen"
	Identifier     "Right"
	Device         "Onboard VGA"
	Monitor        "Right"
	DefaultDepth    24
	SubSection     "Display"
	    Depth       24
	EndSubSection
EndSection

I'm following http://en.gentoo-wiki.com/wiki/X.Org/Du … ors/Nvidia

Last edited by synthead (2011-09-14 17:01:39)

karol · 2011-09-14 18:15:19

xorg.conf wrote:

Option "Xinerama" "boolean"
enable or disable XINERAMA extension. Default is disabled.

You can also read https://bbs.archlinux.org/viewtopic.php?id=124144

synthead · 2011-09-14 18:43:12

Okay, I have Xinerama working, but I'd prefer to have one large desktop instead of three X sessions. You know, so I can have the ability to drag windows across the monitors and such. How can I get Twinview set up like this? Or is there a Twinview-esque feature I could enable?

Last edited by synthead (2011-09-14 18:48:53)

karol · 2011-09-14 18:51:02

synthead wrote:

Okay, I have Xinerama working, but I'd prefer to have one large desktop instead of three X sessions. You know, so I can have the ability to drag windows across the monitors and such. How can I get Twinview set up like this?

I only know what I've read in the thread I linked to. See last post in this thread: https://bbs.archlinux.org/viewtopic.php … 31#p985831

mandos wrote:

They can twinview only monitors that are on the same graphics-card.

By 'they' he means nVidia drivers.

Arch Linux

#1 2011-09-14 16:22:00

Two nVidia cards, three monitors: what should I do with my xorg.conf?

#2 2011-09-14 16:40:29

Re: Two nVidia cards, three monitors: what should I do with my xorg.conf?

#3 2011-09-14 16:54:18

Re: Two nVidia cards, three monitors: what should I do with my xorg.conf?

#4 2011-09-14 18:15:19

Re: Two nVidia cards, three monitors: what should I do with my xorg.conf?

#5 2011-09-14 18:43:12

Re: Two nVidia cards, three monitors: what should I do with my xorg.conf?

#6 2011-09-14 18:51:02

Re: Two nVidia cards, three monitors: what should I do with my xorg.conf?

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