Finally 3440*1440(60Hz) external display is perfect working on my rMB through HDMI | MacRumors Forums
![A1520 MacBook Pro Retina 13" 2015. Lower inch of screen discolored and flickers. External monitor is fine. Fixes? Replace display cable, or is it more serious? : r/mac A1520 MacBook Pro Retina 13" 2015. Lower inch of screen discolored and flickers. External monitor is fine. Fixes? Replace display cable, or is it more serious? : r/mac](https://preview.redd.it/a1520-macbook-pro-retina-13-2015-lower-inch-of-screen-v0-nciqu4mxo8cb1.jpg?width=640&crop=smart&auto=webp&s=a19edabac3c2a5277fc26dadcd395728079f12e0)
A1520 MacBook Pro Retina 13" 2015. Lower inch of screen discolored and flickers. External monitor is fine. Fixes? Replace display cable, or is it more serious? : r/mac
![How to Use Your MacBook in Closed-Display Mode with an External Display - Laptop/Mobile Service Center How to Use Your MacBook in Closed-Display Mode with an External Display - Laptop/Mobile Service Center](https://www.topteksystem.com/wp-content/uploads/toptek-macboon-replace-screen.jpg)