Thank you kindly for your help so far.
You suggested earlier to try UseDisplayDevice “None”
That put this error in the log file:
[ 12.279] (II) NVIDIA GLX Module 418.70 Wed Apr 10 11:18:12 CDT 2019
[ 12.283] (EE) NVIDIA(GPU-0): UseDisplayDevice "None" is not supported with GRID
[ 12.283] (EE) NVIDIA(GPU-0): displayless
[ 12.283] (EE) NVIDIA(GPU-0): Failed to select a display subsystem.
[ 12.283] (EE) NVIDIA(0): Failing initialization of X screen 0
[ 12.283] (**) NVIDIA(1): Depth 24, (--) framebuffer bpp 32
[ 12.283] (==) NVIDIA(1): RGB weight 888
I still can’t get multiple screens to work. Here is what does work:
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.3" xrandr -q
Can't open display :0.3
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.2" xrandr -q
Can't open display :0.2
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.1" xrandr -q
Can't open display :0.1
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.0" xrandr -q
Screen 0: minimum 8 x 8, current 10240 x 1600, maximum 16384 x 8640
DVI-D-0 connected primary 2560x1600+0+0 (normal left inverted right x axis y axis) 641mm x 400mm
2560x1600 59.86*+ 59.99 59.97
4096x2160 60.03
3840x2160 60.01 60.00 60.00 59.98 59.97
3200x1800 59.96 59.94
2880x1620 59.97 59.96
2560x1440 59.99 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
2048x1152 59.99 59.98 59.91 59.90
1920x1440 85.00 75.00 60.00
1920x1200 59.95 59.88
1920x1080 60.01 59.97 59.96 59.93
1856x1392 75.00 60.01
1792x1344 75.00 60.01
1680x1050 59.95 59.88
1600x1200 85.00 75.00 70.00 65.00 60.00
1600x900 59.99 59.94 59.95 59.82
1440x810 60.00 59.97
1400x1050 74.76 59.98
1400x900 59.96 59.88
1368x768 59.88 59.85
1280x1024 85.02 75.02 60.02
1280x960 85.00 60.00
1280x800 59.99 59.97 59.91 59.81
1280x720 60.00 59.99 59.86 59.74
1152x864 75.00
1024x768 85.00 86.96 75.05 60.04 85.00 75.03 70.07 60.00
1024x576 59.96 59.95 59.90 59.82
960x720 85.00 75.00 60.00
960x600 60.00 59.93
960x540 59.99 59.96 59.82 59.63
928x696 75.00 60.05
896x672 75.05 60.01
864x486 59.92 59.57
840x525 60.01 59.88
832x624 74.55
800x600 85.00 70.00 65.00 60.00 85.14 75.00 72.19 60.32 56.25
800x450 59.95 59.82
720x405 59.51 58.99
720x400 85.04
700x525 74.76 59.98
700x450 59.96 59.88
684x384 59.88 59.85
640x512 85.02 75.02 60.02
640x480 85.09 60.00 85.01 75.00 72.81 59.94
640x400 59.98 59.88 85.08
640x360 59.86 59.83 59.84 59.32
640x350 85.08
576x432 75.00
512x384 85.00 87.06 75.03 70.07 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
416x312 74.66
400x300 85.27 75.12 72.19 60.32 56.34
360x202 59.51 59.13
360x200 85.04
320x240 85.18 75.00 72.81 60.05
320x200 85.27
320x180 59.84 59.32
320x175 85.27
DVI-D-1 connected 2560x1600+2560+0 (normal left inverted right x axis y axis) 641mm x 400mm
2560x1600 59.86*+ 59.99 59.97
4096x2160 60.03
3840x2160 60.01 60.00 60.00 59.98 59.97
3200x1800 59.96 59.94
2880x1620 59.97 59.96
2560x1440 59.99 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
2048x1152 59.99 59.98 59.91 59.90
1920x1440 85.00 75.00 60.00
1920x1200 59.95 59.88
1920x1080 60.01 59.97 59.96 59.93
1856x1392 75.00 60.01
1792x1344 75.00 60.01
1680x1050 59.95 59.88
1600x1200 85.00 75.00 70.00 65.00 60.00
1600x900 59.99 59.94 59.95 59.82
1440x810 60.00 59.97
1400x1050 74.76 59.98
1400x900 59.96 59.88
1368x768 59.88 59.85
1280x1024 85.02 75.02 60.02
1280x960 85.00 60.00
1280x800 59.99 59.97 59.91 59.81
1280x720 60.00 59.99 59.86 59.74
1152x864 75.00
1024x768 85.00 86.96 75.05 60.04 85.00 75.03 70.07 60.00
1024x576 59.96 59.95 59.90 59.82
960x720 85.00 75.00 60.00
960x600 60.00 59.93
960x540 59.99 59.96 59.82 59.63
928x696 75.00 60.05
896x672 75.05 60.01
864x486 59.92 59.57
840x525 60.01 59.88
832x624 74.55
800x600 85.00 70.00 65.00 60.00 85.14 75.00 72.19 60.32 56.25
800x450 59.95 59.82
720x405 59.51 58.99
720x400 85.04
700x525 74.76 59.98
700x450 59.96 59.88
684x384 59.88 59.85
640x512 85.02 75.02 60.02
640x480 85.09 60.00 85.01 75.00 72.81 59.94
640x400 59.98 59.88 85.08
640x360 59.86 59.83 59.84 59.32
640x350 85.08
576x432 75.00
512x384 85.00 87.06 75.03 70.07 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
416x312 74.66
400x300 85.27 75.12 72.19 60.32 56.34
360x202 59.51 59.13
360x200 85.04
320x240 85.18 75.00 72.81 60.05
320x200 85.27
320x180 59.84 59.32
320x175 85.27
DVI-D-2 connected 2560x1600+5120+0 (normal left inverted right x axis y axis) 641mm x 400mm
2560x1600 59.86*+ 59.99 59.97
4096x2160 60.03
3840x2160 60.01 60.00 60.00 59.98 59.97
3200x1800 59.96 59.94
2880x1620 59.97 59.96
2560x1440 59.99 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
2048x1152 59.99 59.98 59.91 59.90
1920x1440 85.00 75.00 60.00
1920x1200 59.95 59.88
1920x1080 60.01 59.97 59.96 59.93
1856x1392 75.00 60.01
1792x1344 75.00 60.01
1680x1050 59.95 59.88
1600x1200 85.00 75.00 70.00 65.00 60.00
1600x900 59.99 59.94 59.95 59.82
1440x810 60.00 59.97
1400x1050 74.76 59.98
1400x900 59.96 59.88
1368x768 59.88 59.85
1280x1024 85.02 75.02 60.02
1280x960 85.00 60.00
1280x800 59.99 59.97 59.91 59.81
1280x720 60.00 59.99 59.86 59.74
1152x864 75.00
1024x768 85.00 86.96 75.05 60.04 85.00 75.03 70.07 60.00
1024x576 59.96 59.95 59.90 59.82
960x720 85.00 75.00 60.00
960x600 60.00 59.93
960x540 59.99 59.96 59.82 59.63
928x696 75.00 60.05
896x672 75.05 60.01
864x486 59.92 59.57
840x525 60.01 59.88
832x624 74.55
800x600 85.00 70.00 65.00 60.00 85.14 75.00 72.19 60.32 56.25
800x450 59.95 59.82
720x405 59.51 58.99
720x400 85.04
700x525 74.76 59.98
700x450 59.96 59.88
684x384 59.88 59.85
640x512 85.02 75.02 60.02
640x480 85.09 60.00 85.01 75.00 72.81 59.94
640x400 59.98 59.88 85.08
640x360 59.86 59.83 59.84 59.32
640x350 85.08
576x432 75.00
512x384 85.00 87.06 75.03 70.07 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
416x312 74.66
400x300 85.27 75.12 72.19 60.32 56.34
360x202 59.51 59.13
360x200 85.04
320x240 85.18 75.00 72.81 60.05
320x200 85.27
320x180 59.84 59.32
320x175 85.27
DVI-D-3 connected 2560x1600+7680+0 (normal left inverted right x axis y axis) 641mm x 400mm
2560x1600 59.86*+ 59.99 59.97
4096x2160 60.03
3840x2160 60.01 60.00 60.00 59.98 59.97
3200x1800 59.96 59.94
2880x1620 59.97 59.96
2560x1440 59.99 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
2048x1152 59.99 59.98 59.91 59.90
1920x1440 85.00 75.00 60.00
1920x1200 59.95 59.88
1920x1080 60.01 59.97 59.96 59.93
1856x1392 75.00 60.01
1792x1344 75.00 60.01
1680x1050 59.95 59.88
1600x1200 85.00 75.00 70.00 65.00 60.00
1600x900 59.99 59.94 59.95 59.82
1440x810 60.00 59.97
1400x1050 74.76 59.98
1400x900 59.96 59.88
1368x768 59.88 59.85
1280x1024 85.02 75.02 60.02
1280x960 85.00 60.00
1280x800 59.99 59.97 59.91 59.81
1280x720 60.00 59.99 59.86 59.74
1152x864 75.00
1024x768 85.00 86.96 75.05 60.04 85.00 75.03 70.07 60.00
1024x576 59.96 59.95 59.90 59.82
960x720 85.00 75.00 60.00
960x600 60.00 59.93
960x540 59.99 59.96 59.82 59.63
928x696 75.00 60.05
896x672 75.05 60.01
864x486 59.92 59.57
840x525 60.01 59.88
832x624 74.55
800x600 85.00 70.00 65.00 60.00 85.14 75.00 72.19 60.32 56.25
800x450 59.95 59.82
720x405 59.51 58.99
720x400 85.04
700x525 74.76 59.98
700x450 59.96 59.88
684x384 59.88 59.85
640x512 85.02 75.02 60.02
640x480 85.09 60.00 85.01 75.00 72.81 59.94
640x400 59.98 59.88 85.08
640x360 59.86 59.83 59.84 59.32
640x350 85.08
576x432 75.00
512x384 85.00 87.06 75.03 70.07 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
416x312 74.66
400x300 85.27 75.12 72.19 60.32 56.34
360x202 59.51 59.13
360x200 85.04
320x240 85.18 75.00 72.81 60.05
320x200 85.27
320x180 59.84 59.32
320x175 85.27
[centos@ip-10-0-43-72 ~]$
and the xorg.conf for the above output:
[centos@ip-10-0-43-72 ~]$ cat /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
Screen 1 "Screen0 (1)" RightOf "Screen0"
Screen 2 "Screen0 (2)" RightOf "Screen0 (1)"
Screen 3 "Screen0 (3)" RightOf "Screen0 (2)"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
#Option "Xinerama" "1"
EndSection
Section "Files"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor2"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor3"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 0
EndSection
Section "Device"
Identifier "Device0 (1)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 1
EndSection
Section "Device"
Identifier "Device0 (2)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 2
EndSection
Section "Device"
Identifier "Device0 (3)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 3
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "ConnectedMonitor" "GPU-0.DFP-3,GPU-0.DFP-2,GPU-0.DFP-1,GPU-0.DFP-0"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (1)"
Device "Device0 (1)"
Monitor "Monitor1"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "ConnectedMonitor" ""
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (2)"
Device "Device0 (2)"
Monitor "Monitor3"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "ConnectedMonitor" ""
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (3)"
Device "Device0 (3)"
Monitor "Monitor4"
DefaultDepth 24
Option "nvidiaXineramaInfo" "False"
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "ModeDebug" "True"
Option "ConnectedMonitor" ""
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
[centos@ip-10-0-43-72 ~]$
And here is the xorg.conf that I believe follows your instructions on what should work?
[centos@ip-10-0-43-72 ~]$ cat /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
Screen 1 "Screen0 (1)" RightOf "Screen0"
Screen 2 "Screen0 (2)" RightOf "Screen0 (1)"
Screen 3 "Screen0 (3)" RightOf "Screen0 (2)"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor2"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor3"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 0
EndSection
Section "Device"
Identifier "Device0 (1)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 1
EndSection
Section "Device"
Identifier "Device0 (2)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 2
EndSection
Section "Device"
Identifier "Device0 (3)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 3
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "GPU-0.DFP-0"
Option "ConnectedMonitor" "GPU-0.DFP-0"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (1)"
Device "Device0 (1)"
Monitor "Monitor1"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "GPU-0.DFP-1"
Option "ConnectedMonitor" "GPU-0.DFP-1"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (2)"
Device "Device0 (2)"
Monitor "Monitor3"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "GPU-0.DFP-2"
Option "ConnectedMonitor" "GPU-0.DFP-2"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (3)"
Device "Device0 (3)"
Monitor "Monitor4"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "GPU-0.DFP-3"
Option "ConnectedMonitor" "GPU-0.DFP-3"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
[centos@ip-10-0-43-72 ~]$
and the output for that xorg.conf:
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.3" xrandr -q
Can't open display :0.3
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.2" xrandr -q
Can't open display :0.2
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.1" xrandr -q
Can't open display :0.1
[centos@ip-10-0-43-72 ~]$ DISPLAY=":0.0" xrandr -q
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 16384 x 8640
DVI-D-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 700mm x 400mm
2560x1600 59.86 + 59.99 59.97
4096x2160 60.03
3840x2160 60.01 60.00 60.00 59.98 59.97
3200x1800 59.96 59.94
2880x1620 59.97 59.96
2560x1440 59.99 59.99 59.96 59.95
2048x1536 85.00 75.00 60.00
2048x1152 59.99 59.98 59.91 59.90
1920x1440 85.00 75.00 60.00
1920x1200 59.95 59.88
1920x1080 60.01* 59.97 59.96 59.93
1856x1392 75.00 60.01
1792x1344 75.00 60.01
1680x1050 59.95 59.88
1600x1200 85.00 75.00 70.00 65.00 60.00
1600x900 59.99 59.94 59.95 59.82
1440x810 60.00 59.97
1400x1050 74.76 59.98
1400x900 59.96 59.88
1368x768 59.88 59.85
1280x1024 85.02 75.02 60.02
1280x960 85.00 60.00
1280x800 59.99 59.97 59.91 59.81
1280x720 60.00 59.99 59.86 59.74
1152x864 75.00
1024x768 85.00 86.96 75.05 60.04 85.00 75.03 70.07 60.00
1024x576 59.96 59.95 59.90 59.82
960x720 85.00 75.00 60.00
960x600 60.00 59.93
960x540 59.99 59.96 59.82 59.63
928x696 75.00 60.05
896x672 75.05 60.01
864x486 59.92 59.57
840x525 60.01 59.88
832x624 74.55
800x600 85.00 70.00 65.00 60.00 85.14 75.00 72.19 60.32 56.25
800x450 59.95 59.82
720x405 59.51 58.99
720x400 85.04
700x525 74.76 59.98
700x450 59.96 59.88
684x384 59.88 59.85
640x512 85.02 75.02 60.02
640x480 85.09 60.00 85.01 75.00 72.81 59.94
640x400 59.98 59.88 85.08
640x360 59.86 59.83 59.84 59.32
640x350 85.08
576x432 75.00
512x384 85.00 87.06 75.03 70.07 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
416x312 74.66
400x300 85.27 75.12 72.19 60.32 56.34
360x202 59.51 59.13
360x200 85.04
320x240 85.18 75.00 72.81 60.05
320x200 85.27
320x180 59.84 59.32
320x175 85.27
DVI-D-1 disconnected (normal left inverted right x axis y axis)
DVI-D-2 disconnected (normal left inverted right x axis y axis)
DVI-D-3 disconnected (normal left inverted right x axis y axis)
[centos@ip-10-0-43-72 ~]$
The logfile for the above still shows name conflicts:
https://pastebin.com/raw/JxdVEKhD
[ 11.872] (**) NVIDIA(0): Enabling 2D acceleration
[ 11.872] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 1,
[ 11.872] (WW) NVIDIA(0): but with conflicting values ("GPU-0.DFP-0",
[ 11.872] (WW) NVIDIA(0): "GPU-0.DFP-1"); using value "GPU-0.DFP-0" from X screen
[ 11.872] (WW) NVIDIA(0): 0.
[ 11.872] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 2,
[ 11.872] (WW) NVIDIA(0): but with conflicting values ("GPU-0.DFP-0",
[ 11.872] (WW) NVIDIA(0): "GPU-0.DFP-2"); using value "GPU-0.DFP-0" from X screen
[ 11.872] (WW) NVIDIA(0): 0.
[ 11.872] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 3,
[ 11.872] (WW) NVIDIA(0): but with conflicting values ("GPU-0.DFP-0",
[ 11.872] (WW) NVIDIA(0): "GPU-0.DFP-3"); using value "GPU-0.DFP-0" from X screen
[ 11.872] (WW) NVIDIA(0): 0.
[ 11.872] (**) NVIDIA(0): ConnectedMonitor string: "GPU-0.DFP-0"
[ 11.872] (II) Loading sub module "glxserver_nvidia"
[ 11.873] (II) LoadModule: "glxserver_nvidia"
And if I change the xorg.conf to this, I still get the conflict error messages in the log:
[ 12.029] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 1,
[ 12.029] (WW) NVIDIA(0): but with conflicting values ("DFP-0", "DFP-1"); using
[ 12.029] (WW) NVIDIA(0): value "DFP-0" from X screen 0.
[ 12.029] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 2,
[ 12.029] (WW) NVIDIA(0): but with conflicting values ("DFP-0", "DFP-2"); using
[ 12.029] (WW) NVIDIA(0): value "DFP-0" from X screen 0.
[ 12.029] (WW) NVIDIA(0): Option "ConnectedMonitor" is specified on X screens 0 and 3,
[ 12.029] (WW) NVIDIA(0): but with conflicting values ("DFP-0", "DFP-3"); using
[ 12.029] (WW) NVIDIA(0): value "DFP-0" from X screen 0.
[ 12.029] (**) NVIDIA(0): ConnectedMonitor string: "DFP-0"
Here is the xorg.conf that causes the above errors:
[centos@ip-10-0-43-72 ~]$ cat /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
Screen 1 "Screen0 (1)" RightOf "Screen0"
Screen 2 "Screen0 (2)" RightOf "Screen0 (1)"
Screen 3 "Screen0 (3)" RightOf "Screen0 (2)"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor2"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor3"
VendorName "Unknown"
ModelName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 0
EndSection
Section "Device"
Identifier "Device0 (1)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 1
EndSection
Section "Device"
Identifier "Device0 (2)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 2
EndSection
Section "Device"
Identifier "Device0 (3)"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Tesla M60"
BusID "PCI:0:30:0"
Screen 3
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "DFP-0"
Option "ConnectedMonitor" "DFP-0"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (1)"
Device "Device0 (1)"
Monitor "Monitor1"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "DFP-1"
Option "ConnectedMonitor" "DFP-1"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (2)"
Device "Device0 (2)"
Monitor "Monitor3"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "DFP-2"
Option "ConnectedMonitor" "DFP-2"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen0 (3)"
Device "Device0 (3)"
Monitor "Monitor4"
DefaultDepth 24
Option "AllowEmptyInitialConfiguration" "True"
Option "MetaModes" "1920x1080"
Option "UseDisplayDevice" "DFP-3"
Option "ConnectedMonitor" "DFP-3"
Option "ModeDebug" "True"
SubSection "Display"
Depth 24
Modes "1920x1080"
EndSubSection
EndSection
[centos@ip-10-0-43-72 ~]$
I wonder is there something I am still doing wrong to cause the name conflict errors? Could that be the reason why I get no separate x screens?
I appreciate your patience and ongoing help. Thank you.