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I have a two monitor screen connected but since the update of the nvidia 460 i can only use one monitor the other is black. When i reset it to nouveau both screens are there what can i do ? to get this back ? I do not know at this moment

xrandr Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 DP-0 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm 1920x1080 60.00*+ 59.94 50.00
1680x1050 59.95
1600x1200 60.00
1440x900 59.89
1280x1024 60.02
1280x960 60.00
1280x720 59.94 50.00
1152x720 60.00
1024x768 60.00
800x600 60.32 56.25
720x576 50.00
720x480 59.94
640x480 59.94 59.93

https://imgur.com/gallery/BJ7hGym

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

nvidia-settings: version 440.82

Section "ServerLayout"

Removed Option "Xinerama" "0"

Removed Option "Xinerama" "1"

Identifier     "Layout0"
Screen      0  "Screen0" 0 0
Screen      1  "Screen1" 2049 0
InputDevice    "Keyboard0" "CoreKeyboard"
InputDevice    "Mouse0" "CorePointer"
Option         "Xinerama" "0"

EndSection

Section "Files" EndSection

Section "Module" Load "dbe" Load "extmod" Load "type1" Load "freetype" Load "glx" 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      "Idek Iiyama PLX2483H"
HorizSync       30.0 - 83.0
VertRefresh     55.0 - 76.0
Option         "DPMS"

EndSection

Section "Monitor"

# HorizSync source: edid, VertRefresh source: edid
Identifier     "Monitor1"
VendorName     "Unknown"
ModelName      "Idek Iiyama PLX2481H"
HorizSync       30.0 - 83.0
VertRefresh     55.0 - 76.0
Option         "DPMS"

EndSection

Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GTX 1650" BusID "PCI:1:0:0" Screen 0 EndSection

Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GTX 1650" BusID "PCI:1:0:0" Screen 1 EndSection

Section "Screen"

Removed Option "metamodes" "HDMI-0: nvidia-auto-select +0+0"

Removed Option "metamodes" "HDMI-0: 1920x1080_60 +0+0"

Identifier     "Screen0"
Device         "Device0"
Monitor        "Monitor0"
DefaultDepth    24
Option         "Stereo" "0"
Option         "nvidiaXineramaInfoOrder" "DFP-2"
Option         "metamodes" "HDMI-0: nvidia-auto-select +0+0"
Option         "SLI" "Off"
Option         "MultiGPU" "Off"
Option         "BaseMosaic" "off"
SubSection     "Display"
    Depth       24
EndSubSection

EndSection

Section "Screen"

Removed Option "metamodes" "HDMI-1: nvidia-auto-select +0+0 {AllowGSYNC=Off}"

Removed Option "metamodes" "HDMI-1: nvidia-auto-select +0+0 {ForceCompositionPipeline=On, ForceFullCompositionPipeline=On, AllowGSYNC=Off}"

Removed Option "metamodes" "HDMI-1: nvidia-auto-select +0+0 {AllowGSYNC=Off}"

Removed Option "metamodes" "HDMI-1: 1920x1080_60_0 +0+0 {AllowGSYNC=Off}"

Removed Option "metamodes" "HDMI-1: nvidia-auto-select +0+0 {AllowGSYNC=Off}"

Removed Option "metamodes" "HDMI-1: 1920x1080_60 +0+0 {AllowGSYNC=Off}"

Identifier     "Screen1"
Device         "Device1"
Monitor        "Monitor1"
DefaultDepth    24
Option         "Stereo" "0"
Option         "nvidiaXineramaInfoOrder" "DFP-3"
Option         "metamodes" "HDMI-1: nvidia-auto-select +0+0 {AllowGSYNC=Off}"
Option         "SLI" "Off"
Option         "MultiGPU" "Off"
Option         "BaseMosaic" "off"
SubSection     "Display"
    Depth       24
EndSubSection

EndSection

Section "Extensions" Option "(null)" "Disable" EndSection

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I had a similar issue with my three screen setup. Surprisingly, the solution was to change the refresh frequency of one of the screens. The only way I could get all 3 screens to work was to set one of them to 59.xx Hz instead of 60Hz. I'm not sure why this happens, and the logs didn't seem to help.

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  • oke but where can i set these settings ? nvidia they talk about absolute lol but thats wasn't working i can see my mouse over there thats all :) – Johnsandman Jan 12 at 9:47
  • so as you see i tried several times But nothing is worked. Nvidia update and xserver update gives this results before everything was fine – Johnsandman Jan 12 at 13:04
  • problem solves I simple wiped the xorg conf en reboot the machine :) very strange – Johnsandman Jan 12 at 17:29
  • Well, I guess there was something odd in your configuration. For what I'm concerned, you can change the refresh rate with xrandr or even with Ubuntu's GUI display settings. Note that some displays do not have the option to change the refresh rate. – Giovanni Beltrame Jan 13 at 15:13
  • Yes for some reason it did, but it was after an update of the nvidia and xserver. I have copied now the screen with the right configuration in case off :) – Johnsandman Jan 14 at 6:50

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