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custom resolution

  1. S

    First Time MacBook user using smart TV as external Monitor

    I really hope someone can help me with the following; I am using LG 55inch OLED 4K TV as an external monitor for my new MacBook Pro. I am trying to use a custom resolution of 3200x1800 instead of 4K resolution. However I don't want the screen to be stretched to fit TV, I simply want to have an...