4 K TV can not change the resolution or refresh rate

When I connect my end of 2013 retina MacBook Pro to a TV 1080 p via HDMI, system preferences port gives me a list of supported resolutions and refresh rate to choose. But when I connect to the laptop even to my new Vizio M43 - C1, it generates a fixed 3840x2160@30Hz and gives me only a handful of options for scaling HiDPI. I want to change frequency to 24 Hz for movies, I do all the time with TVs 1080 p, but I can't find the option anywhere. SwitchResX works, but are there seriously no official way to change the resolution and refresh rate when a 4K TV is connected? Looks like a massive oversight.

Hello NeilT6,

These 4 k TVs sound incredible. If I had one I would like to than the best resolution, that I could not too.  Have you tried now hold Option key while selecting the display scaling settings?

Use screens 4 K and Ultra HD TVs with your Mac - Apple Support

Pointing your mouse on a resolution options will show more details about this option. To get a button detect displays appear, press the Option key. To see all available resolutions, press Option key while clicking on the button of the chipped.

Take care.

Tags: Notebooks

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