Problems with 2 EDID-Files on Linux

Graphics / Linux Linux
1

I have a problem with 2 EDID-Files on a Linux-Workstation. One EDID-File is working. I connect via HPRGS and I have the correct resolution.

Now the Problem: When I use 2 EDID-Files, then the second monitor is disabled and also I cant’s change that with the tool nvidia-settings

here my steps:

  1. I create a fresh Konfigfile with nvidia-xconfig

  2. I put the following entrys in Section “Device”
    Option “ConnectedMonitor” “DFP-0,DFP-1”
    Option “CustomEDID” “DFP-0:/etc/X11/1920x1080edid.bin;DFP-1:/etc/X11/1920x1080edid.bin”

  3. here the entrys in section “Screeen”
    Option “TwinView” “True”
    Option “MetaModes” “DFP-0: 1920x1080 +0+0, DFP-1: 1920x1080 +1920+0;DFP-0: 1920x1080 +0+0, DFP-1:NULL”

here my /etc/X11/xorg.conf:

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

nvidia-xconfig: version 515.76

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/input/mice”
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”
Option “DPMS”
EndSection

Section “Device”
Identifier “Device0”
Driver “nvidia”
VendorName “NVIDIA Corporation”
Option “ConnectedMonitor” “DFP-0,DFP-1”
# Option “CustomEDID” “DFP-0:/etc/X11/2560x1440edid.bin;DFP-1:/etc/X11/2560x1440edid.bin”
Option “CustomEDID” “DFP-0:/etc/X11/1920x1080edid.bin;DFP-1:/etc/X11/1920x1080edid.bin”
EndSection

Section “Screen”
Identifier “Screen0”
Device “Device0”
Monitor “Monitor0”
DefaultDepth 24
Option “TwinView” “True”
Option “MetaModes” “DFP-0: 1920x1080 +0+0, DFP-1: 1920x1080 +1920+0;DFP-0: 1920x1080 +0+0, DFP-1:NULL”
SubSection “Display”
Depth 24
EndSubSection
EndSection

here the xrandr information:
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
DP-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 527mm x 297mm
1920x1080 60.00*+
1600x900 60.00
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
DP-1 connected (normal left inverted right x axis y axis)
1920x1080 60.00 +
1600x900 60.00
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
DP-2 disconnected (normal left inverted right x axis y axis)

DP-3 disconnected (normal left inverted right x axis y axis)

DP-4 disconnected (normal left inverted right x axis y axis)

DP-5 disconnected (normal left inverted right x axis y axis)

DP-6 disconnected (normal left inverted right x axis y axis)

DP-7 disconnected (normal left inverted right x axis y axis)

Anyone have an idea or is it a bug?

Furter information … On a old other linux machine with the same operating system (Centos 7.9) it is possible to use 2 EDID-Files, but with the lagacy driver.

here infos from the logfile:
[ 20.004] (WW) NVIDIA(0): No valid modes for
[ 20.004] (WW) NVIDIA(0): “DFP-0:1920x1080+0+0,DFP-1:1920x1080+1920+0”; removing.
[ 20.004] (II) NVIDIA(0): Validated MetaModes:
[ 20.004] (II) NVIDIA(0): “DFP-0:1920x1080+0+0,DFP-1:NULL”
[ 20.004] (II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
[ 20.007] (–) NVIDIA(0): DPI set to (92, 91); computed from “UseEdidDpi” X config
[ 20.007] (–) NVIDIA(0): option
[ 20.008] (II) NVIDIA: Reserving 24576.00 MB of virtual memory for indirect memory

Tanks for information and greetings
Thorsten

2

Moving this to a proper forum as this category does not offer support.