Hello,
I ended up getting a pair of 8600GT as I wanted to experiment with the CUDA compiler a little bit. I am having trouble getting SLI to work.
my current /etc/X11/xorg.conf looks like
Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder26) Thu Feb 14 18:13:41 PST 2008
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 1.0 (buildd@yellow) Tue Mar 4 20:28:57 UTC 2008
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 1280 0
Screen 1 "Screen1" LeftOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
EndSection
Section "ServerFlags"
# Removed Option "Xinerama" "0"
Option "Xinerama" "1"
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"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "XXX M24EI4"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 71.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "WDE LCM-19v5"
HorizSync 30.0 - 82.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
BusID "PCI:1:0:0"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-0: 1920x1200 +0+0; DFP-0: 800x600 +0+0; DFP-0: 640x480 +0+0"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "metamodes" "DFP-0: 1920x1200_60 +0+0; DFP-0: 800x600 +0+0; DFP-0: 640x480 +0+0"
Option "SLI" "off"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP-1: 1280x1024 +0+0; DFP-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP-1: nvidia-auto-select +0+0"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "DFP-1: 1280x1024_60 +0+0"
Option "SLI" "off"
SubSection "Display"
Depth 24
EndSubSection
This is the one that works fine, as you can see from the config file, I have two displays, a 1280x1024 and a 1920x1200.
when I run the command
"nvidia-xconfig --sli=on"
I get this xorg.conf file
Code:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder26) Thu Feb 14 18:13:41 PST 2008
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 1.0 (buildd@yellow) Tue Mar 4 20:28:57 UTC 2008
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 1280 0
Screen 1 "Screen1" LeftOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
RgbPath "/usr/X11R6/lib/X11/rgb"
EndSection
Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
EndSection
Section "ServerFlags"
# Removed Option "Xinerama" "0"
Option "Xinerama" "1"
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"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "XXX M24EI4"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 71.0
Option "DPMS"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor1"
VendorName "Unknown"
ModelName "WDE LCM-19v5"
HorizSync 30.0 - 82.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
BusID "PCI:1:0:0"
Screen 0
EndSection
Section "Device"
Identifier "Videocard1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8600 GT"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-0: 1920x1200 +0+0; DFP-0: 800x600 +0+0; DFP-0: 640x480 +0+0"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "metamodes" "DFP-0: 1920x1200_60 +0+0; DFP-0: 800x600 +0+0; DFP-0: 640x480 +0+0"
Option "SLI" "on"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP-1: 1280x1024 +0+0; DFP-1: nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP-1: nvidia-auto-select +0+0"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "DFP-1: 1280x1024_60 +0+0"
Option "SLI" "on"
SubSection "Display"
Depth 24
EndSubSection
EndSection
But then my second display, the 1280x1024 does not receive input. When I got to nvidia-settings, I see it disabled. I re-enable it in the GUI, save my xorg.conf, and restart X11 server, and then it still shows up as disabled.
Does SLI not work on multiple screens in Linux? I am really at a lost what to do here, any help/input would be appreciated.
Thanks,
Zack
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