Why are there glitches in the HDMI signal to my TV?

Question

Level 1

9 points

Why are there glitches in the HDMI signal to my TV?

Bought a mini display out-to-HDMI adapter, and a 12-foot HDMI cable to attach my macbook pro (13-inch, 2.3 ghz Core i5) to my TV (Vizio HDTV)

After messing with the display control panel, got the displays to mirror. It works perfectly about 80 percent of the time, but there are times when the signal to the TV just goes black. SOmetimes there are green static flickers and colorful static.

Also last night it completely wouldn't recognize the TV until I turned everything off, switched HDMI ports, and restarted everything.

Are there ways to reduce the interference or whatever is causing these glitches?

MacBook Pro, Mac OS X (10.7.4)

Posted on Jun 7, 2012 9:43 PM

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Answer 1

X423424X

Level 6

14,271 points

Jun 7, 2012 10:30 PM in response to DipsetCam

Maybe you need to try another adapter for comparison.

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Answer 2

Jun 7, 2012 11:34 PM in response to DipsetCam

I had the same issue.

I too have a Vizio HDTV that I use as a monitor when I do graphics.

Sometimes, the image gets so blurry or has some static.

My issue however, was the HDMI cable.

Decided to try one of those cheap $9.99 cables. Returned it for the same cable and still got the same problem.

So, I returned that cable and went for a $29 cable and i have never had a problem since.

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Answer 3

DipsetCam Author

Level 1

9 points

Jun 8, 2012 9:07 AM in response to Bimmer 7 Series

Ok, I will try a different cable and adapter...Belkin has an all in one converter + HDMI cable, it's 60 bucks which is why I didn't get it but I suppose it's worth a shot if it will get this TV working so I can watch EURO 2012...LOL

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Answer 4

captfred

Level 7

26,446 points

Jun 8, 2012 10:20 AM in response to DipsetCam

I'd try a shorter HDMI cable first.

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Answer 5

DipsetCam Author

Level 1

9 points

Jun 8, 2012 12:06 PM in response to captfred

Went out and got a Vizio-branded cable that is both more expensive AND shorter...and...nothing. LOL the old cable at least gave me a picture part of the time, this one doesn't seem to work at all. Starting to get frustrated

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Answer 6

Jun 8, 2012 12:17 PM in response to DipsetCam

Check the setting on your Vizio on the HDMI/Video section.

I think there's a section where it say's 24 Bit and 36 Bit HDMI processing or something like that. Try using the lower settings.

Set your video settings to Auto instead of 1080P.

See if that helps.

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Answer 7

DipsetCam Author

Level 1

9 points

Jun 8, 2012 3:18 PM in response to Bimmer 7 Series

I couldn't find any of the settings you were talking about on my Vizio.

Hey, thanks for replying though, I really appreciate people responding, anyone else got ideas? Germany vs. Portugal is tomorrow and that's really the game that inspired this whole quest

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