Mini display port to HDMI problem

Well, I got the early 2011 Macbook Pro and it should support Mini DisplayPort to HDMI adapter (From Apple Store). The graphic card used is Radeon HD 6750M / Intel Graphics 3000.

Before 10.7.2, everything working fine. After the update, the adapter doesnt work anymore.

hey,

I've got a late 2010 Macbook pro running ios lion 10.7.2 with NVIDIA GeForce 320M 256mb.

When i plug my tv sceen to IMac ... still a couple of blue screen only!!!

Hope some will know what's going on ??

Thank guys

Still having the same problem. When connecting the mini-display adapter, I get two blue screens and then nothing.

I has worked for some time until I upgraded to Lion - at least thats what I think. And it seems that there are many with the same problem.

However, I have rolled back to 10.6.8 using install CD and an old safetycopy via Timemachine. That didn't fix it.

I have NVIDIA GeForce 320M

(and macBook pro 2.4 Ghz Intel Core duo 2)

I'm having this issue. I have been able to get it to work in the past, but I'm not sure what update or changed that made it where I can't connect my LCD TV. The MacBook doesn't even recognize the outside source. Very frustrating because it doesn't seem to have a logical explanation as of yet. Please help!

Early 2011

Graphics AMD Radeon HD 6750M 1024 MB

I am having this same issue ever since installing the newest update. My system is running on Snow Leopard. I have an adapter that hooks to the HDMI cord which was working fine before the newest update. Whatever the issue is I hope its resolved soon.

Not sure if anyone has figured out the problem - but I have the Kanex Mini DisplayPort to HDMI Cable - I went to the apple in the left corner - System Preferences - Displays - Arrangement and Clicked the box "Mirror Display." Then it worked fine....everything I do on the computer comes up on the TV now.

We should go viral with this. It's literally a feature that should work no matter what, yet Apple continues to ignore. Maybe once they get some bad publicity they may think about attempting to fix it or atleast giving us a reason as to why it is not working, this is ridiculous. Imagine how fast a fix would come out if this somehow managed to get front-paged on Engadget or similiar. This is a feature I'm sure many people would love to use but still cannot because of bad hardware or software, and it's ultimately Apple's fault for the most part.

My problem solved!!

I tested my macbook and my cables at my friend sith a similar setup. He is running Lion i am running Snowleopard. Both macs were giving to blue screens, and then nothing when using my HDMI adapter. Then we swithed to his adapter, and both setups workes.

I found out that it was my minidisplay-hdmi adapter, that had stopped working - unfortunately it stopped during the same periode where i upgraded to Lion, so naturally I blamed the upgrade. Didn't even consider that the adapter should have stopped working. It had been working fine for 6 months. I even tried rolling back to Snowleopard - with no result of course.

I'm not suggesting this is whats going on for all pf you - but it may be worth to try another adapter.

I have a NVIDIA GeForce 320M

Same problem here. displayport-HDMI adapter replaced after 10.7.2 upgrade and it works again. Seems to be the solution although it is VERY coincidental that many many users have this problem and their adapters "give out" at the same time.

I found a solution

Using a Macbook Pro late 2011.

Using a Belkin Mini DisplayPort to HDMI Adaptor

TV: Sony 3d HDTV

FOR PICTURE

Plug HD cable to HD adapter

Go to System Preferences > Displays>

If you look at your TV, a Display should show up for your TV.

a different display window should show up on your laptop.

The display is too big for what is seen on the laptop. So to view anything on your tv

drag any window on your laptop that you want to view on your tv to the right of your laptop screen..

and it should display on your TV.

FOR SOUND

go to system preferences > sound > output > select your tv as device

Hope this helps everyone.

Hi there,

I ordered a Mini display port to HDMI adapter, and connected it to my Macbook. It worked in the sense that my computer screen was now on my TV, but the resolution was slightly wrong. I went into System Preferences -> Display to change this and looked through my options under the Toshbia TV screen settings. As I went through the different resolutions to see what would look best, I selected one that caused both displays (my Macbook and Toshiba TV) to flicker bright white. It is therefore impossible to see what is going on on my Macbook, so I can't change the resolution to another one. When I pull the adapter out, the Macbook goes back to its usual display settings and is fine. The issue is only when I connect my TV to my Macbook via the adapter and both screens flicker like crazy.

Does anyone know how I can fix this problem or change the default resolution for my connected TV some other way?

Thanks.

Funny enough, like several posts on here, I went to the mac store to get it checked, and it was my adapter...funny that so many people had issues with their perfectly fine working adapter before the update. I now have the Moshi adapter and it works great.

Not sure what the original problem was but not buying Dynex anymore...

A success story.

I tried to connect a macbook pro 13" (bought in mid 2010) to a LG LED TV (55LV5500). In order to do so I bought a third party minidisplay-to-HDMI adapter (5.01$) and a HDMI cable ($1.73). I purchased from Amazon but the items came from Cable Matters. Here are the links to the two items:

http://www.amazon.com/gp/product/B002HU629E/ref=oh_o00_s00_i00_details

http://www.amazon.com/gp/product/B0002L5R78/ref=oh_o01_s00_i00_details

I cannected the macbook pro to the tv using the adaptor + cable and:

1) the TV recognized that something was attached to the HDMI port but I saw black screen

2) the macbook recognized an attached LG display. I could try to change the resolution on this screen by "gathering windows" in the Display pane of the preferences. No combination of resolutions would work.

So, after trying many things that were proposed on this thread, I stopped by (with my macbook, adapter and cable) at the Best Buy store where I purchased the TV and asked for help.

One of their guys (he was very knowledgeable) connected my laptop to another TV with the vere same setup I had at home and we immediately got a flickering image (not black screen though!). He then proceeded to replace my 5$ adapter with their 25$ adapter (from rocketfish) and it worked beautifully. We then went around and found precisely my TV (that was on display at the store) and tried the same thing. In this case, we reproduced my black screen with the 5$ adapter and got perfect image with the rocketfish $25 one. We then checked that even the sound worked perfectly with the rocketfish dongle.

Bottom line, the cheap adapter sends a damaged/imperfect signal that different TV's can either correctly interpret (from what I read in the thread I assume that this might happen sometimes BUT have no direct experience of this case), or partially interpret (flicker), or fail to interpret (like my LG TV).

On the one hand, my experience and my solution might not be the final answer for all cases mentioned in this thread; on the other one, this clearly proves that some adapters send out a damaged HDMI signal.

Hope this helps.

I have new aluminium mac mini with the same display problems. But now, after two weeks of spasmodic use, it now will not display. Isn't it a little embarressing for Apple? And how do I install the suggested firmware update (although not a guaranteed solution) if I can't see anything! Catch 22!!!!

I just solved my monitor problem so hopefully this will help some of you out there. My mini-display port to television used to work and I was frustrated for the longest time because I couldnt fix it and most of the post out there didn't seem to have the right solution for me. Tonight, I happend to come along this post and scanned a few comments and someone mentioned the 'gfxcardstatus' program. It dawned on me that maybe one of the state (nvidia, intel or switching) was not liked by the tv. I switched it to 'NVIDIA ONLY' and it has been working like a charm! I didn't even have to unistall it. Good luck to you all.