Mini display port to HDMI problem

I have an early 2011 macbook pro 15' i7 top model.

Always enjoyed connecting my macbook pro to my Samsung 40' LCD TV - with a thunderbolt to hdmi cable from Artwizz. ( it was an expensive cable)

Then some time ago this connection STOPPED working! Initially I tried everything - went through all the forums and all tried all the options, power on/off, resetting the PRAM, gfcardstatus etc etc etc.. nothing worked. Then I turned away from it, tried to accept the technical ridiculousness..

Now I just want it too work again.. its unbelievable! How can it be that a tech problem ( probably just in the software) like this all of a sudden appears and APPLE not doing anything about it? I mean this is a major issue if you read all the forums including this thread. The main problem is not in the cable, not in the tv or external screen, just in the connection and APPLE SOFTWARE!

I don't even get a flashing blue screen anymore that people say is that ''handshake''. My macbook just doesn't register my TV anymore... at all. It was probably when I updated my MAC OS X, when I think back now..

C'mon apple, are you still there? Or just worrying too much about how the next mass consumer product will sell? Where is the passion to bring emotion into the computing world - together with that '' it just works'' philosophy?

I miss it. It was always so beautiful balanced.. but I don't feel it anymore, even if you look into the new line up of products.. its just so mass consumer and visually orientated..

I'm sorry I got carried away..

Anybody any suggestions?

I'm having the same problems just like you and everyone else. Brand new mac, brand new hdmi mini display adapter and nothing. I also have the OS X up to date. Have you found any solutions??

In desperate need of help.

Thanks!

So...for $1600 CAD, I get an ALUMINUM can that does not have a backspace button, no HDMI output and when it's own super duper Thuderbolt (display adapter no less for some $39.95 thank you verry much.!!), connects to a TV..I get no Audio cause its not supported...??? and then have to go through 72 steps to make changes.?? I dont think so kiddies.

W-T-F is is that about APPLE.??? This is B.U.L.L.S.H.!.T people.....for a top of the line pce of equipment to have these basic things not working in a seamless manner is completely UNACCEPTABLE.

WHERE is your reply...huh.

Theo Groenevelt

Calgary, Alberta

I'm in the goddamned phone book....call me if you have the balls.

Hi guys there is another thread similar to this. I had all the problems of not being able to connect using a hdmi cable, i tried two new adapters and new cables but they would work for a short period and then stop. Done all the pram resets etc but nothing worked. Eventually I found a mini display port to hdmi CABLE by NEET oon amazon and ordered it. Since then, its been about a month and a half now, I have had absolutely NO problems connecting to the displays that wouldnt work earlier (samsung syncmaster, samsung t, optima projector). I actually tried everything I could to get the cable not to work, like closing the lid whiles the mac is on to start clamshell mode, removing and reconnect the cable, whatever else i could think of. I can see that loads of you are frustrated and upset with this situation, but it has plagued mac users for years and apple doesnt care to do anything. I urge you to get a minidisplay port to hdmi cable, perhaps by NEET, because this completely fixed my problem with the external displays.

Vic

Funny part in this entire fiasco is that, a direct mdp to hdmi male cable has a much better chance of working than a mdp to HDMI female adaptor. But HDMI insists that it does not support the MDP to HDMI male direct cable and the same is the violation of the usage license.

Hi everyone,

I had the same problem and I must have tried most of the suggestions I could find on the net. I found a solution for me and thought I would share.

I use a late 2009 Macbook Pro with 10.6.8 connecting to a Samsung Syncmaster SA950 and a direct mini display port to HDMI which did not work (I read this cable was not "mac supported"). All it did was flash blue as most of you have, and did not show on Display Preferences or About this mac: more info. However the link did work with my LG HDTV. So both were working, but they didn't work with each other.

Back to the Syncmaster: I updated softwares, EFI, tried rebooting with Cmd-Option-P-R, tried combinations of turning on/off connecting before/after - does not work. I was this close to giving it up and buying a WIndows then I gave a last try with an official Apple mini DP to DVI plug and connected with the DVI cable that came with the Syncmaster and it worked (of course, no sound.. if you want sound you might need a double adaptor - mini DP and USB for sound to HDMI/DVI etc which is not that cheap). Then again it might not work for everyone but with an adaptor it should increase the chances

I know it doesn't work for everyone, but from reading all the forums it seems different cables/ solutions work for different people. Anyhow, I'm so frustrated with all this incompatibality I'm going for an Asus next. I was waiting for the new iMac with customization but now with a good monitor I can save around $1000 with better specs. This does not belong in this post but I just want to vent it out lol.

Good luck all!

Got the NEET this week and it is working so far. I bought the NEET 5m cable Mini-DP to HDMI male connector off Amazon UK for £15 having given up with Cabblesson Mini-DP to Female HDMI short connector. I plugged it into my Onkyo Amp and selected the correct channel. The Onkyo HDMI connects to the Panasonic TV HDMI. You have to use the HDMI on the TV that is labelled ARC (Audio Return Channel). This allows sound on the TV to go back to the Onkyo and be properly amplified, if you are using such a set up. The Macbook Pro (Summer 2010) showed up straight away once HDMI 2 ARC was selected as the input. The picture was slightly overscanning, so I switched off overscan on HDMI input, which was in the menu system settings. Then the screen was perfectly placed. There was no sound at first, so I had to go into Mac Preferences/Sound and select the output as the TV. The sound then worked.

In conclusion, I think the main reasons the connectors have not been working for everyone are to do with either (a) the poor HDMI protocol and (b) broken mini-DP to HDMI cables. I have a sneaky suspicion that Mini-DP to HDMI female with a standard 3m/5m HDMI male-male cable creates a lot of HDMI protocol issues and stops connection to TVs. And that the Mini-DP to HDMI male direct cable has less issues. I will report back if I have any issues with this NEET cable and remove my recommendation if it fails.

If that is your conclusion, then you haven't read this thread very closely. many of us have used every cable/connector/adaptor available (including the Neet) and also had the thing working just fine for lengthy periods and then suddenly, it stopped working, for no discernible reason. Good luck with your Neet cable but I, for one, had it working perfect for well over two years before it suddenly went kaput...

maybe that's why the thread is 42 pages and growing, eh?

Hi everyone!

Hoping you can help me with a similar problem.

I have a Macbook Air 11' from October 2010, bought refurbished from Apple in late 2011. I normally stream content on my LG 46" HD Ready 1080p LCD-TV (model 46ld550n) through my Apple TV, but recently our internet has been so unstable that I decided to buy a HDMI cable to avoid getting interrupted by slow bandwidth in the middle of a movie.

As such, I bought an HDMI to Mini DisplayPort cable. However, whenever I watch something (or even just mirror the image), the image is cut every 2-3 minutes by a short flash or black screen (sometimes with a short crackling sound) and even at times a noise image (the one you used to get in the old days when there was no antenna signal). Needless to say, this is terribly annoying, especially since this was supposed to be the failproof back-up solution. Any ideas on how to fix this?

I have a NVIDIA GeForce 320M 256 MB graphics card and run OS X 10.8.2 Mountain Lion.

Please help a fellow disgruntled mac-lover 🙂

Steinhov,

Best thing is to try a better , or just different, cable or adaptor. The cheap ones don't tend to work as well (or at all), but even then it's a little hit and miss for some people.

What brand cable are you using?

I had the same problem and switched to iWires (frankly overpriced cable) from the Apple store expecting to return it with the same problem, but it's been perfect for a year :-)

Cheers

hi , i have a shinco 42 inch tv i was trying to hdmi-hdmi conection with mac pro...but its showing blue display in tv and no signal..but i used the hdmi cable with sony tv it worked..im using mac os x 10.7.5. canu anyone help me out?

Alright here's my situation;

I have a MacBook Pro 13" from late 2010,
I recently bought a Rocketfish MDP to HDMI adapter,
I turned my 47" LG on and plugged the wires in,
I plugged the adapter into my laptop,

The screen went blue
The image of my desktop appeared for 3 seconds

The image dissapeared

Now when I plug everything in again absolutely nothing happens.The screen doesn't go blue and the TV doesn't recognize that anything is going on. I tried downloading gfxCardStatus and switching to 'Dynamic Sqitching' mode and it still won't work. I've tried plugging everything in and rebooting my laptop but that doesn't work either. NOTHING WORKS!

Any tips or strange tricks that I should try?

I have the same problem.. I connect my macbook pro mid 2012 on my LG screen via a macally adaptor minidisplay port to hdmi, works fine for a couple weeks and then it just stops recognize my tv.. Bought another macally -cable this time- works for a couple days,then stops again. It can recognize my tv but no signal... I ve tryied all combinations -close tv, restart macbook, change hdmi port,- somehow it worked again until i unpluged from battery charger and mni display port.. When connected again, nothing happens, just for a second i saw wallpaper and then NO SIGNAL on tv screen...

Οκ... This is what i did.. I downloaded gfxcardstatus, i tryied all three statuses of them by plugging and unplugging hdmi every time and now it works again.. Dont know what else to say and why this happens...

I bought the mini dvi to HDMI adapter from bestbuy. I connected it and got a background and sometimes a mouse pointer. I looked at all the posts in this thread until I got to one that said "hit command and F1" and Voila! I was floored. Whoda thunk. Thanks whoever psted.