Enable Additional Scaled Resolutions in macOS

Follow these steps to enable scaled resolutions of 1536 x 864 and 1920 x 1080 on the stock X220 LCD panel.


  1. Open the Terminal and enter this command:
    ioreg -lw0 | grep IODisplayPrefsKey
  2. The output should be something like this:
    "IODisplayPrefsKey" = "IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/IGPU@2/
  3. In the example above, the DisplayVendorID is 30e4 and the DisplayProductID is d302
    Change these numbers in the next two steps to match your output from step 2.
  4. Create an Override folder named DisplayVendorID-30e4 by entering this command in the Terminal:
    sudo mkdir /System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-30e4
  5. Create a Display Override file named DisplayProductID-d302 by entering this command in the Terminal:
    sudo nano /System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-30e4/DisplayProductID-d302
  6. Use the hexadecimal to decimal converter tool here to get the decimal values that correspond to your DisplayVendorID and DisplayProductID
    For example:
    the hex value 30e4 converts to the decimal value 12516
    the hex value d302 converts to the decimal value 54018
  7. Paste this code into the new file you just created. Replace the red and blue numbers with the correct decimal values you obtained in step 6:
    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
            <string>Lenovo x220 Display</string>
  8. Press <Ctrl> + <X> and then respond with Y (for Yes) and then press <Enter> to save the file and exit nano
  9. Restart the computer

The scaled resolutions of 1536 x 864 and 1920 x 1080 should now show up in System Preferences > Displays


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