I recently updated my graphics card from a Quadro FX3800 to an M4000. Everything works with the new card except the stereo 3D vision. X windows will not start if I have
option stereo “10”
set in my xorg.conf file which is the option needed for the old card to use the 3D vision emitter. The computer boots and runs fine when this option is a “3” but the emitter doesn’t work.

I am running Centos 6.8. I’ve installed the newest linux driver (367.44) and don’t get any errors when I install the driver. When I start xwindows I do see complaints about missing nvidia.ko. Have I missed a step in the installation?

I have a Acer GD235Hz monitor with 1920x1080 resolution with 120 Hz refresh rate. Digging through the x windows log file if I found the following error when
Mode is rejected: PixelClock (286.7 MHz) too high for Display Device (Max: 165.0 MHz). Mode “1920x1080_120” is invalid

I am at the end of my expertise here. Any help would be greatly appreciated. I’ve pasted my xorg.conf file below and would be happy to provide any other information.

nvidia-xconfig: X configuration file generated by nvidia-xconfig

nvidia-xconfig: version 367.44 (buildmeister@swio-display-x86-rhel47-01) Wed Aug 17 22:54:35 PDT 2016

Section “ServerLayout”
Identifier “Layout0”
Screen 0 “Screen0”
InputDevice “Keyboard0” “CoreKeyboard”
InputDevice “Mouse0” “CorePointer”
EndSection

Section “Files”
FontPath “/usr/share/fonts/default/Type1”
EndSection

Section “InputDevice”
# generated from default
Identifier “Mouse0”
Driver “mouse”
Option “Protocol” “auto”
Option “Device” “/dev/input/mice”
Option “Emulate3Buttons” “no”
Option “ZAxisMapping” “4 5”
EndSection

Section “InputDevice”
# generated from data in “/etc/sysconfig/keyboard”
Identifier “Keyboard0”
Driver “kbd”
Option “XkbLayout” “us”
Option “XkbModel” “pc105”
EndSection

Section “Monitor”
Identifier “Monitor0”
VendorName “Acer”
ModelName “Acer GD235HZ”
HorizSync 30.0 - 140.0
VertRefresh 56.0 - 120.0
Option “DPMS”
EndSection

Section “Device”
Identifier “Device0”
Driver “nvidia”
VendorName “NVIDIA Corporation”

Option “ModeValidation” “NoMaxPClkCheck”

EndSection

Section “Screen”
Identifier “Screen0”
Device “Device0”
Monitor “Monitor0”
DefaultDepth 24
Option “Stereo” “3”
Option “TwinView” “0”
Option “ModeDebug” “on”
SubSection “Display”
Depth 24
EndSubSection
EndSection

Section “Extensions”
Option “Composite” “Disable”
EndSection

I have a acer gd245 hd.
Some special modelines are needed for 3d …
some part of my xorg.conf

Section “Monitor”

Identifier     "Monitor0"
VendorName     "Unknown"
ModelName      "Acer GD245HQ A"
HorizSync       30.0 - 140.0
VertRefresh     56.0 - 120.0
ModeLine       "1920x1080_60"     148.50 1920 2008 2052 2200 1080 1084 1089 1125 -hsync +vsync
ModeLine       "1920x1080_100"    236.54 1920 1968 2000 2080 1080 1083 1088 1138 +hsync +vsync # 3d 
ModeLine       "1920x1080_110"    261.39 1920 1968 2000 2080 1080 1083 1088 1143 +hsync +vsync # 3d
ModeLine       "1020x1080_120"    286.75 1920 1968 2000 2080 1080 1083 1088 1149 +hsync +vsync # 3d
Option         "DPMS"

EndSection

Section “Device”

Identifier     "Device0"
Driver         "nvidia"
VendorName     "NVIDIA Corporation"
BoardName      "GeForce GTX 670"
Option         "DPMS"

EndSection

Section “Screen”

Identifier     "Screen0"
Device         "Device0"
Monitor        "Monitor0"
Option         "ExactModeTimingsDVI" "True"
Option         "ModeValidation" "AllowNon3DVisionModes, NoEdidModes"
Option         "Stereo" "10"
DefaultDepth    24
SubSection     "Display"
    Depth       24
    Modes       "1920x1080_60" "1920x1080_100" "1920x1080_110" "1920x1080_120"
EndSubSection

EndSection

Section “Extensions”

Option “Composite” “Disable”

EndSection

Thanks for the suggestion. Same problems after adding in the changes to my xorg.conf. In the end, the displayport to DVI cable provided with the card was not sufficient to get the 120 Hz refresh rate. In case anyone else hits the same problem, I ended up getting the Accell UltraAV displayport to DVI-D dual link adapter which works.