Quadro 600 Linux force video output

I have opensuse 42.1 x64 with lastest nvidia drivers and dual-monitor setup. I want to force video output, so linux won’t detect monitor disonnect. I managed to do it on windows using edid files, and now when i disconnect one of my monitors, desktop isn’t resized and windows thinks that monitor is still connected. I need to have something like this on linux. I tried adding edid files in xorg.conf by adding ’ Option “CustomEDID” “DFP-0: /etc/X11/benq.bin; DFP-1: /etc/X11/hp.bin” ', but it still resize my desktop after monitor disconnect. How can i make it work? Here is my full xorg.conf:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 375.20  (buildmeister@swio-display-x86-rhel47-06)  Tue Nov 15 17:48:39 PST 2016

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"

Section "Files"

Section "InputDevice"
    # generated from data in "/etc/sysconfig/mouse"
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "IMPS/2"
    Option         "Device" "/dev/input/mice"
    Option         "Emulate3Buttons" "yes"
    Option         "ZAxisMapping" "4 5"

Section "InputDevice"
    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"

Section "Monitor"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "BenQ GW2250"
    HorizSync       30.0 - 83.0
    VertRefresh     50.0 - 76.0
    Option         "DPMS"

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Quadro 600"
    BusID          "PCI:4:0:0"
    Option         "IgnoreEDID" "false"
    Option         "CustomEDID" "DFP-0: /etc/X11/benq.bin; DFP-1: /etc/X11/hp.bin"
    Option         "UseEDID" "true"

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "DVI-I-1: nvidia-auto-select +1280+0, DP-0: 1280x1024_60_0 +0+56"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24