4 Monitors using Nvidia Quadro NVS 440

**quake101** · 01-29-2008, 12:54 PM

Today I got around to hooking up the 3rd and 4th monitors and was unsuccessful getting them to work. I believe the problem is with the BusID PCI (0a:00.0), I have tried PCI:10:0:0 in the xorg.conf with no success. Please see below.

From Xorg.0.log

Code:

(WW) NVIDIA: No matching Device section for instance (BusID PCI:10:0:0) found

lspci | grep -i vga

Code:

09:00.0 VGA compatible controller: nVidia Corporation Quadro NVS 440 (rev a2)
0a:00.0 VGA compatible controller: nVidia Corporation Quadro NVS 440 (rev a2)

See my original post on Ubuntu forms here: http://ubuntuforums.org/showthread.php?t=675965

**quake101** · 01-29-2008, 03:18 PM

Just adding more info to the thread.

cat /proc/driver/nvidia/cards/*

Code:

Model:           Quadro NVS 440
IRQ:             16
Video BIOS:      05.43.02.88.03
Card Type:       PCI-E
DMA Size:        39 bits
DMA Mask:        0x7fffffffff
Bus Location:    09.00.0

Model:           Quadro NVS 440
IRQ:             17
Video BIOS:      05.43.02.88.03
Card Type:       PCI-E
DMA Size:        39 bits
DMA Mask:        0x7fffffffff
Bus Location:    0a.00.0

cat /proc/interrupts

Code:

           CPU0       CPU1       CPU2       CPU3       
  0:      34618      34331      34090      34105   IO-APIC-edge      timer
  1:          0          2          0          0   IO-APIC-edge      i8042
  6:          1          2          2          0   IO-APIC-edge      floppy
  8:          0          0          0          0   IO-APIC-edge      rtc
  9:          0          0          0          0   IO-APIC-fasteoi   acpi
 14:       2795       2825       2824       2817   IO-APIC-edge      libata
 15:          0          0          0          0   IO-APIC-edge      libata
 16:       5724       5679       5938       5813   IO-APIC-fasteoi   eth0, HDA Intel, nvidia
 17:         58         61         59         63   IO-APIC-fasteoi   nvidia
 18:        250        244        263        242   IO-APIC-fasteoi   uhci_hcd:usb4
 20:          0          0          0          0   IO-APIC-fasteoi   ahci
 21:       1429       1486       1461       1472   IO-APIC-fasteoi   uhci_hcd:usb1, ehci_hcd:usb3
 22:        189        149        150        150   IO-APIC-fasteoi   uhci_hcd:usb2
 23:          0          0          0          0   IO-APIC-fasteoi   uhci_hcd:usb5
 24:       2252       2264       2256       2316   IO-APIC-fasteoi   ioc0
NMI:          0          0          0          0 
LOC:     137003     136987     136959     136675 
ERR:          0

Looks like eth0 and the 2nd video head are on the same IRQ (16). Now I gotta fix it. Any ideas?

**quake101** · 01-30-2008, 08:18 AM

Ok, I'm really lost now. I removed and eth0 from the machine and still no go. I don't think it's an IRQ thing now. Any help?

Btw, here is my current xorg.conf (I commented out the 3rd and 4th monitors and only running the first 2 monitors)

Code:

Section "ServerLayout"
	Identifier	"Default Layout"
	screen 0 "Default Screen" 0 0
	screen 1 "Screen1" rightof "Default Screen"
#	screen 2 "Screen2" rightof "Screen1"
#	screen 3 "Screen3" rightof "Screen2"
	Option		"Xinerama"	"true"
	Inputdevice	"Generic Keyboard"
	Inputdevice	"Configured Mouse"
EndSection

Section "Files"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"	"/dev/input/mice"
	Option		"Protocol"	"ImPS/2"
	Option		"ZAxisMapping"	"4 5"
EndSection

Section "Monitor"
    Identifier     "DELL 1908FP 0"
    HorizSync       30.0 - 70.0
    VertRefresh     50.0 - 160.0
    Option         "DPMS"
EndSection

Section "Device"
	Identifier	"NVIDIA Quadro NVS 440 0"
	Busid		"PCI:9:0:0"
	Driver		"nvidia"
	Screen	0
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"NVIDIA Quadro NVS 440 0"
	Monitor		"DELL 1908FP 0"
	Defaultdepth	24
	SubSection "Display"
		Depth	24
	        Modes      "1280x1024" "1024x768" "800x600"
	EndSubSection
EndSection

Section "Monitor" 
	Identifier	"DELL 1908FP 1"
	HorizSync       30.0 - 70.0
	VertRefresh     50.0 - 160.0
	Option		"DPMS"
EndSection

Section "Device" 
	Identifier	"NVIDIA Quadro NVS 440 1"
	Busid		"PCI:9:0:0"
	Driver		"nvidia"
	Screen	1
EndSection

Section "Screen" 
	Identifier	"Screen1"
	Device		"NVIDIA Quadro NVS 440 1"
	Defaultdepth	24
	Monitor		"DELL 1908FP 1"
	SubSection "Display"
		Depth	24
	Modes		"1280x1024" "1024x768" "800x600"
	EndSubSection
EndSection

#Section "Monitor"
#	Identifier	"DELL 1908FP 2"
#	HorizSync       30.0 - 70.0
#	VertRefresh     50.0 - 160.0
#	Option		"DPMS"
#EndSection

#Section "Device" 
#	Identifier	"NVIDIA Quadro NVS 440 2"
#	Busid		"PCI:10:0:0"
#	Driver		"nvidia"
#	Screen	0
#EndSection

#Section "Screen"
#	Identifier	"Screen2"
#	Device		"NVIDIA Quadro NVS 440 2"
#	Defaultdepth	24
#	Monitor		"DELL 1908FP 2"
#	SubSection "Display"
#		Depth	24
#	Modes		"1280x1024" "1024x768" "800x600"
#EndSection

#Section "Monitor"
#	Identifier	"DELL 1908FP 3"
#	HorizSync       30.0 - 70.0
#	VertRefresh     50.0 - 160.0
#	Option		"DPMS"
#EndSection

#Section "Device" 
#	Identifier	"NVIDIA Quadro NVS 440 3"
#	Busid		"PCI:10:0:0"
#	Driver		"nvidia"
#	Screen	1
#EndSection

#Section "Screen" 
#	Identifier	"Screen3"
#	Device		"NVIDIA Quadro NVS 440 3"
#	Defaultdepth	24
#	Monitor		"DELL 1908FP 3"
#	SubSection "Display"
#		Depth	24
#	Modes		"1280x1024" "1024x768" "800x600"
#EndSection

**quake101** · 01-30-2008, 08:38 AM

I fixed it and feel like a fool now. I used "Nvidia Settings" to configure my screens and it worked the first time.

**thomberg** · 09-20-2008, 03:53 AM

your discussion helped a lot - I am running Nvidia NVS 440 with Ubuntu 64bit

in your xorg.conf file you have a syntax error

Section "Screen"
# Identifier "Screen2"
# Device "NVIDIA Quadro NVS 440 2"
# Defaultdepth 24
# Monitor "DELL 1908FP 2"
# SubSection "Display"
# Depth 24
# Modes "1280x1024" "1024x768" "800x600"
!!!! issing EndSubSection
#EndSection

once I added that it worked like a charm - thanks again

**Blupp** · 11-25-2008, 06:03 PM

quake101, thomberg, what is your X version? and what nvidia driver version do you run?
I have a setup with three LCDs, but at one point upgraded to Xorg7.? and now running Xorg7.4 and I have problems with DFP-0 on the 2nd head of the NVS440. It sometimes shows garbage and when I move windows onto there, then it completely slows down my machine.
Not sure if my NVS440 is broken or if this is really a problem with the newer Xorg versions.
thanks.

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