This HOWTO is for problems related to incorrect resolutions resulting from EDID problems. In other words, your video card is unable to detect the correct EDID settings from your monitor, at the fault of your video card driver. I tested this with my Nvidia GeForce MX440 Go.

As I cannot take credit for the solution, here is a link to the original post at nVnews forums:

Please note that unless you know what you are doing, your /etc/X11/xorg.conf file should be the standard one generated by the driver installation.


  1. Download Phoenix EDID Designer.
  2. If you're able to run Windows, use windows to run this program, otherwise use Wine. I'm not sure if it works 100% using Wine, so refer to the original post.
  3. In Phoenix EDID Designer, click "Tools > Extract Registry EDID".
  4. Click on the listing that appears, then click "Extract EDID"
  5. Click "File > Export" and save your file as a ".raw" file.
  6. Copy your file to the /etc/X11/ directory:
    sudo cp EDID_FILE.raw /etc/X11/
  7. Edit your xorg.conf:
    sudo gedit /etc/X11/xorg.conf
    And, add the following option lines to the "device" section
    #Option      "AddARGBGLXVisuals" "true" #NVidia specific, uncomment if needed
    #Option      "UseDisplayDevice" "DFP-0" #Uncomment and modify if needed
    Option      "CustomEDID" "DFP-0:/etc/X11/nvnew.raw"
  8. Save the file, close gedit and press "CTRL ALT BACKSPACE" to restart X.