Connect mac to tv hdmi black screen

Thanks for the feedback.

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As mentioned in the original post: I have the same issue and there is absolutely nothing wrong with the monitor. There are enough reports out there that there is clearly a bug in the thunderbolt 2 to digital display output that can creep up on people. The thunderbolt ports work enough that I ethernet and vga work…super frustrating.

Which MacBook do you have?

Could it be you have a MacBook that has gotten rather hot when this problem occurs? Maybe you even have a rather old MacBook that has a swollen battery that is pressing onto internal components like the touchpad so severely that they start malfunctioning?

MacBook Pro Retina, inch, Early 3. In that case, start out by cleaning the connectors and ports with a hair-pin, and maybe a tiny bit of alcohol-based detergent. You are commenting using your WordPress. You are commenting using your Twitter account. Would really appreciate some help! Thanks Will. More Less. All replies Drop Down menu. Loading page content. Community Specialist. Have a look at the article below for some helpful troubleshooting steps.

Get help with video issues on external displays connected to your Mac - Apple Support If the behavior persists or you run into any trouble, please reach out again. Reply Helpful Thread reply - more options Link to this Post.

Your Answer

Install any macOS or firmware updates that are listed. If the display image is blank or unusable Try these steps if you don't see an image on your display. Check connections Check the connections to your Mac and external displays: If you're using an Apple notebook, try connecting its power adapter. Make sure the external display's power cable is securely connected and that your display is turned on.

If you're using a Mac Pro Late make sure your displays are connected to the right ports. If you're using a display hub, switchbox, or "KVM," try connecting your display's video cable directly to your Mac instead. Disconnect the video cable where it plugs into your Mac, then plug it back in to reseat the connection. If you're using a video adapter, unplug the video adapter from your Mac, then plug it back in to reseat the connection. If you're using more than one video adapter to connect your display the adapters are "chained" together , try connecting the display using only one adapter if possible.

Some video adapters can't be connected together.

If your display has more than one video connection, see if using another connection on the display works. If possible, check to see if using a different display or a different adapter works. Try using a different cable that you know is in working order. Check with the display's manufacturer to make sure you're using the cable they recommend.

Restart the Mac with the display connected.

Detect your display If you're using an external display, sleep and wake your Mac to make it check for connected displays: Wait a few moments, then press a key on your keyboard or click your mouse or trackpad to wake your Mac. Adjust video settings If there's no image on your display, try adjusting your display's brightness or contrast.

To adjust the brightness of a secondary display, press Control-F2. If you're using a display that's not made by Apple, check the documentation that came with your display to see if it includes built-in controls for adjusting its brightness or contrast. Click the Displays icon.

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• What could possibly go wrong?.

Click Default for display. If you see more than one resolution listed, choose a resolution and refresh rate. If the display turns off when you change resolutions, press the escape key to undo the change. Check for third-party display software If your display works only when your Mac is started in safe mode, and you have display-related software installed, check with the software's developer for updates, or try temporarily uninstalling it.

If an image appears fuzzy or blurry If images or text on your display appear pixelated or blurry, check these things. Check your display resolution Make sure your display resolution in System Preferences is set to its default.