No connection Macbook air to TV

I have a Macbook air 2017 and I am trying to connect to a Toshiba TV via a HDMI cable and my Minidisplay port. This worked fine with my Macbook air 2013 but now it does not work. Everything looks right until I turn on the TV, it just says "no video signal". Any suggestions?

MacBook Air 13″, macOS 12.7

Posted on Dec 23, 2025 8:04 AM

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6 replies

Dec 23, 2025 10:03 AM in response to urbannilmander

urbannilmander wrote:

Thanks, I guess you mean I should choose between HDMI1 or 2? Well I have tried both and it makes no difference.

Yes, that's exactly what I meant.


Here is some of Apple's guidance:

Use your TV as a display with Mac - Apple Support


Have you set up mirroring in the System Settings > Displays?

What video cable and/or adapter are you using?


Dec 23, 2025 10:47 AM in response to urbannilmander

Check the display resolution. You may have to select something different.

Check the manual for the Toshiba to see what resolutions it supports.

Start with the (Default) resolution of the MacBook Air. I'm not sure just what that is, but it's a good place to start.

You may have to toggle ON the "Show all resolutions" switch to view others.


Change your Mac display’s resolution - Apple Support


No connection Macbook air to TV

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