I had 3 "NVIDIA NVS 300 Dual-VGA" with 6 monitors. I switched to 2 "NVIDIA Quadro NVS 450" cards for 8 monitors.
I had packages installed
xorg-server
xorg-xinit
xf86-input-evdev
xf86-input-mouse
xf86-input-keyboard
mesa
xorg-xrandr
xf86-video-nouveau
xf86-video-vesa
xf86-video-fbdev
I removed
xf86-video-nouveau xf86-video-vesa xf86-video-fbdev
I installed
nvidia-340xx
I have 2 "NVIDIA Quadro NVS 450" cards connected to 8 monitors. Only detects 2 monitors
xrandr -q
Screen 0: minimum 8 x 8, current 3840 x 1080, maximum 8192 x 8192
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 74.97 74.91 59.94 50.00 60.00 50.04
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
DP-3 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 74.97 74.91 59.94 50.00 60.00 50.04
1680x1050 59.95
1440x900 59.89
1280x1024 75.02 60.02
1280x800 59.81
1280x720 60.00 59.94 50.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 60.32 56.25
720x576 50.00
720x480 59.94
640x480 75.00 59.94 59.93
My xorg.conf generated from nvidia-xconfig:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 340.108 (buildmeister@swio-display-x64-rhel04-01) Wed Dec 11 15:13:33 PST 2019
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
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 "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
I have:
lspci -k | grep -A 2 -E "(VGA|3D)"
05:00.0 3D controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
Subsystem: NVIDIA Corporation Device 0619
Kernel driver in use: nvidia
--
06:00.0 VGA compatible controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
Subsystem: NVIDIA Corporation Device 0619
Kernel driver in use: nvidia
--
09:00.0 3D controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
Subsystem: NVIDIA Corporation Device 0619
Kernel driver in use: nvidia
--
0a:00.0 VGA compatible controller: NVIDIA Corporation G98 [Quadro NVS 450] (rev a1)
Subsystem: NVIDIA Corporation Device 0619
Kernel driver in use: nvidia
I changed my xorg.conf to ↓ according to help → xrandr doesn't detect monitor on hdmi port
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 340.108 (buildmeister@swio-display-x64-rhel04-01) Wed Dec 11 15:13:33 PST 2019
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection
Section "Files"
ModulePath "/usr/lib/nvidia"
ModulePath "/usr/lib/xorg/modules"
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 "Monitor0"
VendorName "Unknown"
ModelName "Idek Iiyama PL2493H"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Idek Iiyama PL2493H"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor2"
VendorName "Unknown"
ModelName "Idek Iiyama PL2493H"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor3"
VendorName "Unknown"
ModelName "Idek Iiyama PL2493H"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVS: 450"
BusID "PCI:05:00:0"
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVS: 450"
BusID "PCI:06:00:0"
EndSection
Section "Device"
Identifier "Device2"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVS: 450"
BusID "PCI:09:00:0"
EndSection
Section "Device"
Identifier "Device3"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVS: 450"
BusID "PCI:0a:00:0"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection
After I remove xorg.conf it still doesn't detect all monitors. Where is the problem?
My Xorg.0.log → https://pastebin.com/rF1vRvXC
My dmesg → https://pastebin.com/H0PmX6zy
