Ytdyklly

So for some reason even if my monitor doesn't support resolutions above 1024x768 (it's an old monitor) this xorg.config that I found in a forum allows me to set a custom resolution in nvidia x server and it works perfectly if I don't do this: if I click "save to x configuration file" button and reboot, the monitor is just a black screen. I don't really mind not messing with my current xorg.config and configuring it manually every time I boot the pc, however I want to know why does applying this settings to xorg.config breaks its functionality.

This is the xorg.config that makes setting custom resolution possible if I don't mess with it.

Section "ServerLayout"

    Identifier     "Layout0"

    Screen      0  "Screen0" 0 0

    InputDevice    "Keyboard0" "CoreKeyboard"

    InputDevice    "Mouse0" "CorePointer"

    Option         "Xinerama" "0"

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"

    # HorizSync source: edid, VertRefresh source: edid

    Identifier     "Monitor0"

    VendorName     "Unknown"

    ModelName      "NT@ LCD MONITOR"

    HorizSync       28.0 - 66.0

    VertRefresh     48.0 - 75.0

    Option         "DPMS"

    Modeline "1400x1050_57.20"  115.75  1400 1488 1632 1864  1050 1053 1057 1088 -hsync +vsync

EndSection



Section "Device"

    Identifier     "Device0"

    Driver         "nvidia"

    VendorName     "NVIDIA Corporation"

    BoardName      "GeForce GT 520"

EndSection



Section "Screen"

    Identifier     "Screen0"

    Device         "Device0"

    Monitor        "Monitor0"

    DefaultDepth    24

    Option         "Stereo" "0"

    Option         "nvidiaXineramaInfoOrder" "CRT-1"

    Option         "metamodes" "HDMI-0: nvidia-auto-select +0+0, VGA-0: nvidia-auto-select +1400+0"

    Option         "SLI" "Off"

    Option         "MultiGPU" "Off"

    Option         "BaseMosaic" "off"

    Option         "ModeValidation" "NoVesaModes, NoXServerModes"

    Option         "ExactModeTimingsDVI" "True"

    SubSection     "Display"

        Depth       24    

    Modes      "1400x1050_57.20"

    EndSubSection

EndSection

And this is the modified file where I tried to add settings that are generated by the "save x configuration" button in nxserver:

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

# nvidia-settings:  version 415.27



Section "ServerLayout"

    Identifier     "Layout0"

    Screen      0  "Screen0" 0 0

    InputDevice    "Keyboard0" "CoreKeyboard"

    InputDevice    "Mouse0" "CorePointer"

    Option         "Xinerama" "0"

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"

    # HorizSync source: edid, VertRefresh source: edid

    Identifier     "Monitor0"

    VendorName     "Unknown"

    ModelName      "Unknown"

    HorizSync       28.0 - 66.0

    VertRefresh     48.0 - 75.0

    Option         "DPMS"

    Modeline "1400x1050_57.20"  115.75  1400 1488 1632 1864  1050 1053 1057 1088 -hsync +vsync

EndSection



Section "Device"

    Identifier     "Device0"

    Driver         "nvidia"

    VendorName     "NVIDIA Corporation"

    BoardName      "GeForce GT 610"

EndSection



Section "Screen"

    Identifier     "Screen0"

    Device         "Device0"

    Monitor        "Monitor0"

    DefaultDepth    24

    Option         "Stereo" "0"

    Option         "nvidiaXineramaInfoOrder" "CRT-1"

    Option         "metamodes" "1024x768 +0+0 {viewportin=1440x1080}, HDMI-0: nvidia-auto-select +0+0, VGA-0: nvidia-auto-select +1400+0"

    Option         "SLI" "Off"

    Option         "MultiGPU" "Off"

    Option         "BaseMosaic" "off"

    Option         "ModeValidation" "NoVesaModes, NoXServerModes"

    Option         "ExactModeTimingsDVI" "True"

    SubSection     "Display"

        Depth       24

    Modes      "1400x1050_57.20"    

    EndSubSection

EndSection

I didn't see the point in adding the file generated by the "save x configuration", since A) it's the same as the first file, the things that are different in the second file are what the nxserver config file had that the first file didn't have and B) because it breaks something and just makes screen black on boot.

Well I just want to know why this renders a black screen, but if you know how to keep settings on reboot without breaking functionality that'd be great.