Mini display port to HDMI problem

Dude you saved me a **** lot of trouble... and for that I thank you... My display port was going to the blue screen and back in like a second and it would not display on the TV... so this is what I did

1. Connect all the cables and keep the TV switched off..

2. Follow what Gerrycgc24 has said and if your Mirror Display is already checked then uncheck it.

3. Switch on the TV and Switch it off

4. Now follow what Gerrycgc has said and Check the Mirror Display again

5. Now switch your TV on

6. If it works thank Gerrycgc24

7. If it does not work, go back to Step 1 and repeat till you can arrive at Step 6.

Hello, I've been unable to find my problem's solution here so I have to ask.

Old 2009 Macbook

Connecting the Cables to LG 42", all I get on the TV is Apple's weird space Nebula screen saver. It's not even my own screen saver shot. I can freely wave the mouse over the TV, but cannot get any sort of picture from the laptop, except if i'm changing the screen saver!

Finger trouble? Nothing seems to work.

Update....... Gerrycgc24 on page 2 suggestion worked fine......

this is abseloute ******** i bought a moshi hdmi adapeter thingo for bloddy $50 dollars from jb-hi-fi worked abseloutley great for the first week no problems i just had to set up mirror displays and all of that and it worked, now all of a sudden my laptop isnt picking anything up ANYTHING ive tried 2 different tv's and all i get is no signal, the laptop isnt picking up the tv what so ever. I cant even go to arrangments/mirror displays and play around in there etc because its not picking anything up! outrages this is. Does this sound like a software or cord problem? my hdmi cord is about 3 years old if it helps and the moshi adapter about a week... oh and i have a late 2011 macbook pro 13' version 10.72 im currently updating my software to see if that helps.

Locky124, I am having the exact same problem. The arrangement tab doesn't even show up because there isn't a display being recognized. My screen, however, blinks blue everytime I unplug or plug in the hdmi or the moshi adapter. If anyone has a solution to this, I would love to hear it.

exact same problem !!!! so annoying, bought hdmi cable and moshi mini display port to hdmi less than a month ago it worked perfectly until recently my macbook doesnt even pick up the tv or flash blue, nothing. i tried different hdmi cable different tv's. the tvs recognise the hdmi in input but not the mabook.

yeah mine doesnt even have the blue screen anymore..mine worked perfectly but now its like theres no cable connecting the 2 and its only a week old, its meant to be the top notch adapters..oh and updating did nothing i am now 10.75

Dear Locky,

I had to go through the same heart ache so i understand your sentiments. I had two adaptors fail on me and went through this entire charade of blame apple and having to read through post of dimwits who did not know how to connect cables or click mirror displays.

But then i got the direct cable and it just worked. As someone mentioned in the last page it seems that adaptors somehow tend to burn out, and we have no idea why.

On what else you could try, I have put in an ealier post on step by step instructions if your cable/adaptor fails. maybe you could try those steps before investing in the new cable

Hi all

Had the problem last year, new moshi fixed the problem. HOWEVER!

Has anyone found that your iPhone causes the signal to die?! Its happened to me a few times now in the last 3 days. My cable to the external monitor runs accross my desk and invariably the phone gets placed on or near the cable. Instant monitor shutdown.

try it!

I was having the same "no signal" problem with my MacBook Pro running Lion connecting by mini-displayport to HDMI on an Epson EX5200 projector with a cable from Cable Matters. I switched the resolution for the projector output from 1080p to 1080i and problem solved!

GENIUS! You nailed it with #2

aarjee wrote:

Intel based macbooks have too GPUs. One a board based Intel GPU for light work and a third party GPU (like NVIDIA) for the most graphic intensive operations. The switching between this is automatic and should happen by itself when you connect an external monitor/tv. However it seems that this fails to happen in some cases. Gfx Card status is third party software than can be installed into macbook and lets you control the switching process. Some users seems to have success in connecting a external monitor when you set the macbook to use only the third party gpu but changing setting in gfx card status to discrete.

How NUTS is it that Apple can't get it together enough to fix their own bugs that some random programmer has to make a manual fix to swap the gpus?

I'm using an actual apple mini-displayport -> hdmi cable too. It wasn't until I installed Gdx Card Status and flipped the switch a couple times that all the sudden it worked! Cables were already plugged in, projector was on, just had to clip the GFX switch 3 times and BOOM video!

Geniuses in apple store? gimme a break, the real geniuses are RIGHT HERE online. Thanks so much for everyones contribution to that answer!

OK guys.... Well.... Samsung "Smart TV" is not as near as smart as it wants it to be.... That I can definitely confirn after a month of usage...

But, nevertheless, problem I had was solved with AppleTV unit (99,00 USD) and a small software unit called AirParrot (9,99 USD)...

AirPlay works perfectly, and extend display via that small app works very good so far..

So... No cables... of any kind... just switch to the next gen thinking mode...

Good night...

Okay, so I started to have problems with my Mini Displayport/HDMI adapter today and I found this forum. I tried everything aarjee suggested on page 41 but to no avail. I think the only solution now is to buy a Mini Displayport/HDMI cable (even though I'm not entirely sure the source of the problem is caused by the cable).

I was wondering what's the difference between buying a cheap cable and a more expensive one?

Is there really that much of a difference in the build quality?

The NEET mini display to hdmi worked for me. I was having all the problems mentioned on this forum, tried every possible fix. The cable was a gamble but it paid off. Before that, i was having issues connecting with projectors, monitors, you name it. Strange thing is everything was fine with the moshi adapter until around june, then it stopped working properly. Got a NEET adapter and that too didnt work properly. Well as i said a last ditch attempt was the NEET cable and i have had absolutely no problems since i got it in november.

Good luck.

Airbum88 wrote:

So I guess cable is better than adapter then...

But if you got a brand new NEET adapter, why didn't that work but the cable did...?

I wonder what's the problem that's causing it

Monoprice.com recently inrtoduced a mini display port (Thunderbolt) to HDMI cable, part # 9476. It's 15" and supports audio

I could get it to work with my Sony Bravia as an external monitor, but not in mirror mode.

I'll work on it more after the Super Bowl. ;-)

BTW, I've been able to connect my MBP to the Bravia in mirror mode with a mini display port to VGA adapter and VGA cable. Both available at Monoprice.com.

Hi Airbum

1) You have not tried everything aarjee suggested on page 41. The point 4 there reads - apple has a problem detecting MDP male to HDMI Female adaptors and you should try MDP male to HDMI male cable- which evidently you did not try

2) I understand your frustration and denial that it may indeed be a cable problem (We can never be sure, can we?) But the cable seems to work and the adaptor does not. I went through the same denial sydrom that it can be a problem with my adaptors (3 of them). The direct cable just works. Not just Neet, but also Iwires, belkin etc etc

3) Cable quality differs vastly but is not exactly based on price. In that case a $500 windows laptop should not deliver Video over HDMI which a $2000 Apple mbp is incapable of so to seem.

4) Also read my reply on this very page (46) which list the various cable options available at different price points.

I hope the direct cable works for you. If it does not it is probably a logic board issue and you may need to get your board replaced