Connecting mac to tv hdmi blue screen

Hi, I had my MacBook Pro connected to my tv via HDMI, normally when I connect the two the screen will go blue for a few seconds and then.
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Still blue. Any help would be MUCH appreciated! All replies Drop Down menu. Loading page content. User profile for user: CT CT.

Reply Helpful Thread reply - more options Link to this Post. User profile for user: Alex Werner Alex Werner. Mar 11, AM in response to armstrp In response to armstrp This is not a problem, its just your macbook ajusting its display to fit the external display. What do I need to do? Also I have a magic black mini recorder Capture Card.

And I want to live broadcast Wirecast ,however no sound is being picked up, when I connect the canon to the MacBook. Can you help? Nothing works to get video back. However, after about 5 minutes the video signal returns inexplicably.


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I can still switch my port to Apple TV with no issues with video or audio but when I return to mac mini, my screen is still black. I have a problem with Audio; display works just find and has no issue at all but I have checked all possible options but audio still does not work.

I primarily want it to push secondary screens containing documents or watching a youtube etc. My issue is the fonts on the iMac have all changed, everything is now much smaller.


  1. snow leopard server mac mini 2011.
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  4. The safari browser fonts, email, ichat, calendar……everything now has much smaller font. Moving a safari browser over to the bigger tv works fine, but the iMac is my primary display in this case and I need to be able to read without a new prescription :. I have had my Mac Air hooked and working and suddenly now it wont work when I attach it to my tv.

    I have the correct input and the cables are fine…could this be an OS X update issue? I have not updated Yosemite…. Thank you!!

    Thunderbolt to HDMI Problems

    You saved me hours!! So glad I found this. I also need both the other usb slots for my mbox and ilok. I am having almost the exact same problem as Jason. My computer flashes as well as though it recognizes that something is happening. I do see pages as Option A and Option B above, and I see an option of optimizing the display for a Samsung on my computer, so there is something going on, but no video.

    I have a MacBook inch, Mid 2. I guess it could be a substandard adapter cable but it could be something else too. Good stuff. This helped ease the pain. However, it works great now and the picture is very acceptable. Not sure where I am going wrong frustating. But now when I try and connect, the connection of my desktop on the TV screen only lasts for a few seconds, and it goes blank. It will flick back on for a second, and then go black again for a few minutes. I had the same problem with my Macbook pro and TV.

    I was worried it was the TV or the Mac, which are both much harder to fix, but it turned out it was the much cheaper Mini Display Port Adapters so just get a new one. Opened my system preferences and then sound, but there is not an HDMI option listed. Internal speakers listed only. Any ideas? I have the same problem. I think external speakers are the answer unless some clever person out there has a solution. I have the same problem as well. Someone please help, I can see the video but have no audio. I found your instructions great, but I had a problem the screen on the tv has a pink tinge to it.

    Any suggestions. Many of the cheaper adapters for display-port to HDMI do not support audio, you have to buy an adapter that specifically does support audio output. Thanks so much for this. Just got a 23 inch monitor and was all good for mirroring but was getting the black box when playing videos — which was the main reason I got the monitor.

    After switching the main monitor to the display as you suggested … Perfect! Thanks for the clear and useful help. Thanks Paul! Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited. Hari says:. February 17, at am. Elsworth says:. February 12, at pm.

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    MacBook Pro fails to connect to TV from Thunderbolt HDMI after OS Update

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    How to Connect Your Macbook Air to a TV

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    The solution

    And match with the Mac. See All Buying Options. I have tried a few usb-c hibs 'branded' and the stranger branded versions. They are a bit unstable, probably because they are trying to do a lot of things and deliver power, which I have found isn't always achievable. I have found deliving power is the problem child, especially when your device requires a certain amount of power. This is a major problem. Fortunately this unit doesn't have the power pass through and all the functionality works perfectly.

    Connect the Mac to the TV with HDMI & Adapter

    Highly recommend for a hub without power. This adapter is very good. The cables fit in nice and snug and doesn't come loose.