Mini display port to HDMI problem

I am having a smiliar problem. I just bought a new tv and have had my macbook pro for about 6 months. I updated all my software and bought a Belkin Mini Display Port to HDMI. My macbook isn't even recognizing the Thunderbolt is there. I was on the phone with apple support and they told me to buy a new cable. This was brand new out of the box. I reset my computer when it was starting and still no luck. Can anyone help?

I have a 2010 Macbook pro 13" Im running the lates IOS and i have a mini display port adapter to hdmi. the Cable worked fine for several weeks and then one day last week stopped working. TV says no signal and the macbook turns blue for a sec and mirroring display icon doesn't appear on the screen. i checked preferences and mirroring display is checked. So the set up worked fine for awile how would getting another adapter help?

i think getting a new cable should definitely work, as it seems to a cable burn out issue. and this time instead of adaptor get a cheap mdp male to hdmi male cable. links to buy are there in my earlier posts

If you read this entire thread you will see that this "malfunction" happens with new cables, old cables, borrowed and blue cables... cables that ceased to work on my iMac worked just fine on other computers.. it AIN'T ABOUT THE CABLE.

By all means, get another one.. cheap or expensive it won't make any difference... it will/might/won't work for a while and then, without any explanation or change in circumstances, the blue screen/no input signal and sudden lack of mirroring will appear, like a He11s's demon to upset the applecart.

I'm beginning to feel like several posters in this thread are getting a commission on these darn cables.

Try to "push up" the cable head at the point of the port of your Mac by proping it up with some object. I had the exact same problem and in this thread someone suggested it; it worked for me.

It is not a very elegant solution, (I am proping it up by placing the remote under the head of the cable just where it is attached) but it has been working at least.

I will go back to the local Apple Store here in Amsterdam with the cable I bought there to complain when I have the time, but in the meantime, I can use the big screen.

I hope this helps.

yeah - sorry to disappoint but I had that same problem with the mini/HDMI adaptor cables. They ALL work for a while.. sometimes an hour, sometimes a month or two - no rhyme, no reason...

I CAN, however, shed a small glint of light which may or may not be fitting in this thread.

After a number of years, with removing and replacing about the same number of times as the mini display jack, my headphone socket is now "loose" and consequently - if I only move it a minute amount, the sound goes in and out until I get it "settled" again.

And both of these systems depend on the same circuit boards.. If I had to bet actual money, I'd bet that we are dealing with simple "planned obsolescence" - a marketting and sales process learned from 50s/60s auto manufacturers.

I have a friend who is gonna take my iMac apart and solder in an external jack for the headphone, direct to the board and that should at least fix THAT problem.

I had all the problems before i got the cable, its been fine now since september. So im sorry to hear that it didnt work for you. I am using the NEET cable.

As for your headphone socket, get a bluetooth speaker mate!

As you are basically saying, Apple are doing dodgy stuff here. It is completely uncessary.

a bluetooth speaker leaves me relying on the mac amplification system - the jack lets me run it through my own amp into my own speakers.. why should I have to jump through hoops to get the thing to work properly?

Anyway - I'm GONNA get it fixed.

Hey All! This could be a possible fix to some of your problems.

I have a 13in MBP running Snow Leopard 10.6.8. 40" Sony Bravia connected with HDMI through the rocketfish minidisplay port adapter. Everything has been working fine up until a few nights ago and it suddenly stopped working. When I connected the adapter, the laptop screen would flash blue like it should but return to the normal desktop and not display anything. Last time this happened it was the adapter. Naturally when the issue happened days ago I got a new adapter. Still nothing, just a flash of blue. I tried a different cable to no avail. Funny thing is no matter what hdmi cable I used I could plug into another tv and it would work. So I knew it wasn't the adapter or the cable or the Macbook. I tried all the resets (PRAM and SMC) but still no response from my tv. Obviously I couldn't do anything with the arrangements tab or whatever cause it wasn't being recognized.

Here's what I did:

Kept all cables connected and TV already set to HDMI 2 (which is what I use).

Turn the TV off then UNPLUG IT.

Let it sit UNplugged for 15 or so seconds (basically power cycling the tv)

Plug the TV back in and turn it on. The laptop screen flashes blue a couple times until the TV comes all the way on then both will flash blue and it works again!

Not sure if keeping the cables connected during the process helped but it worked.

So if you know your cables, etc are fine and you've tried all the other stuff. Try this very simple process. It might work for you too.

I've found my solution, don't connect to the monitor using HDMI, seems like a retrograde step, I thought HDMI was supposed to be 'the best', that certainly is NOT my experience.

So, what has worked for me is to carry on using the mini display to female HDMI cable BUT then connect using an HDMI to DVI cable and use the DVI connection at the monitor end; all seems well now!!!

HDMI is a badly designed interface developed for the purpose of controlling content not a superior signal. Since control could not be done with analog connections, HDMI was a new digital alternative to allow whoever wanted to control the content with HDCP.

Problems with HDMI are not usually with the cable but is in the HDCP copy-protection protocol. There was a technical paper from the HDCP group pointing out that some developers of switches are making incorrect assumptions about the way to handle HDMI/HDCP standards.

HDMI is being pushed because of the copy protection. High-bandwidth Digital Content Protection (HDCP) is a form of Digital Rights Management (DRM) developed by Intel Corporation to control digital audio and video content as it travels across Digital Visual Interface (DVI) or High-Definition Multimedia Interface (HDMI) connections. The specification is proprietary, and creating an implementation of HDCP requires a license.

HDCP is licensed by Digital Content Protection, a subsidiary of Intel. In addition to paying fees, licensees agree to limit the capabilities of their products. For example, high-definition digital video content must be restricted to DVD quality on non-HDCP compliant video outputs when requested by the source. DVD-Audio content is restricted to DAT quality on non-HDCP digital audio outputs (analog audio outputs have no quality limits). Licensees cannot allow their devices to make copies of content, and must design their products in ways that effectively frustrate attempts to defeat the content protection requirements

I'm having trouble with the kanex XD vs2. with my mid 2012 macbookpro connecting with a male HDMI cable to my HD Vizio. Im able to connect for like, 5 min, then i get a maroon/red screen on the mac and a blue screen on the TV. what's going on? is there a way to fix it? or am i doing something wrong. the audio/display looks great when it works.

Wow there certainly is a lot of info here. Forgive me if there is a solution already and I didn't find it in the 50 pages of comments.

I purchased a cheap Sanoxy MDP female adapter from amazon. I am going from my macbook pro (2011) to a 32" lcd tv.

It initially worked for me with no problems. The only issues I had was figuring out how to switch the audio back to the computer when i was done.

Now I cannot get the display to work at all. It only worked for a few days. I had to have the tv on and then connect evertyhing to the computer and the screens would go blue and then it would be fine.

Now I get nothing. Detect devices isn't finding anything. I tried to follow all of the different orders and procedures previously suggested in this thread to no avail.

Any help would be greatly appreciated!

question... i dont quite know how to use this blog.... that said.
2010 MAC air mini port to hdmi in 2nd screan (LG TV) does not work. get the blue screan indicating reconition of something being pluged into the mini port but not reaction on the tv.

Did a shutdown restart and got the same result although it did give the option to mirrior and did not work... should i just go back to VGA stule conector and give up on HDMI?

A potential solution to the external display not receiving signal problem is unplug the HDMI cable from either end while both computer and monitor are on, then shut down the computer and unplug the power cord. Reconnect the HDMI cable then the power cord, start up the computer and the external display should work. Throughout the whole process the external display should remain on. People who also have Windows installed through Boot Camp may try getting it to work in Windows first. Once it did, boot back in OS X and it should work too.

To prevent the same issue in the future, choose the resolution that's below the highest supported mode. Use 1080i instead of 1080p or 720p instead of 1080i for example. The Refresh Rate doesn't seem to matter however.

Hope this helps.