We want that the resolution is always 1080P whatever monitors(any resolution monitor) are connected to HDMI/DP

Graphics / Linux Linux
1

We use jetson NX as our core board, and we want that the resolution is always 1080P whatever monitors are connected to HDMI/DP. we are trying the fake edid by modifying /etc/X11/xorg.conf, however, it doesn’t work.
Our steps are as follows
1：Get a 1080p edid file from a monitor(using PC);
2：sudo nvidia-xconfig --custom-edid=HDMI-0:/home/user/edid.bin(using our Jetson NX)

This is the file we generated by sudo nvidia-xconfig command

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 32.6.1


Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    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
    Option         "ModeDebug" "True"
    Option         "CustomEDID" "HDMI-0:/home/user/edid.bin"
    SubSection     "Display"
        Depth       24
        Modes      "nvidia-auto-select"
    EndSubSection
EndSection```