Mini DisplayPort to HDMI Adapter Not Working

I just got a mini displayport to hdmi adapter that I ordered from dealextreme and it does not work. The adapter had very good reviews and not one review said it didnt work. When I plug in the adapter (with or without a hdmi cable attatched to it) to my macbook, the screen blinks and then goes back to normal. When everything is properly connected the tv shows no input signal (I am on the correct input channel) and the screen doesnt appear in the displayas settings in my macbook pro. I tried to reboot the macbook, shut down and turn on the screen and nothing seemed to work. The detect display option in the system preferences didnt help. I appreciate any help I can get.
-Yonatan

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Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine

Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine.
This is a brand new MacBook Pro (15-inch, mid-2012) just received. I suspect that this is a hardware problem as:
The mini-displayport to DVI adapter and the external monitor that I am utilizing connect and operate just fine using my older MacBook Pro (mid-2010) with the same OS.
The new MacBook Pro powers the external monitor with a mini-displayport to VGA adapater without issue.
The new MacBook Pro powers an Apple Thunderbolt display without issue.
Both MacBook Pro's are running OSX Lion 10.7.4.
The only combination which does not work is the mini-displayport to DVI adapater used in conjunction with the brand new MacBook Pro (mid-2012).
All adapters and components (mini-displayport adapters) are Apple retail adapter.
I have tried several external monitors, including my Dell U2412m.
When I connect the mini-displayport to DVI adapater to the new MacBook Pro (mid-2012), nothing happens. The external monitor reports "no signal" and attempts to go into sleep mode. Using the "Detect displays" button has no effect, even when used multiple times. Rebooting does not help, nor does resetting the SMC or PRAM.
Any other suggestions before I take it to the Genius Bar?

I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
Hope that htis helps.

Mini-DisplayPort to HDMI adapter not coming soon

Despite what has appeared in various blogs around the web (and what I had been told previously), it looks like a Mini-DisplayPort to HDMI adapter from Monoprice will not be arriving this month. An e-mail message from monoprice tech support states:
"We are searching for vendors who can produce this for us, but have not found a solution yet. We can not provide any type of time frame regarding when they will be available until we find a source, get a contract and make an announcement. We appreciate your patience and will do our best to find a source if any exists."
So, for those of us expecting such an adapter by the end of this month, this is not good news. It's possible a manufacturing source will be found soon, though now that it has been announced that the mini Display Port is part of the new VESA Display Port 1.2 industry standard.

i was wondering why the website did not even show the MDP to HDMI at all but showed a MDP to VGA and MDP to DVI. sigh..
maybe i'll have to buy the 24" Cinema display hahaa

Mini DisplayPort to VGA adapter not working under Vista (Boot Camp).

Hi there,
I'm facing a very serious issue with MacBook Pro Unibody running MS Vista under Boot Camp: using the Mini DisplayPort to VGA adapter to hook a projector is 95% impossible because the only resolution available is 640x480 or sometimes 800x600. No solution came from the adaptor firmware update, still same behavior: connecting the external projector/monitor toggles 640x480 resolution with no more choices available. Just 5% of attempts on selected projectors gave me access to the complete resolutions list.
This is having a serious impact on my job where I do need both Mac&Windows running natively and with external display capabilities, please I'm looking for some feedback from users facing the same problem or someone who had an official answer on this issue from Apple. Do avoid posting about using modded display drivers please: I know they exist but the adaptor should be working with original ones.
I can understand Apple does not support MS Vista issues but this seems to be a hardware/driver one.
I'd like to point out I'm using a clean Vista installation with Apple drivers (from the Leopard DVD) and I've run Vista (same version, same gfx drivers etc) under Boot Camp on my previous MPB (with integrated DVI output+adapter) on hundreds of different projectors with never a single problem.
Any feedback is really appreciated.
L.

I'm having the same problem. When I try to connect to the switch in our conference room (connecting both a flat panel display and/or a projector, both with much higher native resolutions), all I get is 640x480. This is a huge problem to using bootcamp, and I really need to get this to work. I was able to get a higher resolution 1280x800 on a separate, portable display, so I'm wondering if people have the problem with standalone projectors or only with projectors connected to some sort of switch, in my case an Extron MPX423A. I have also tried this in both Windows Vista (32-bit) and Windows 7 RC1 (32-bit), with the bootcamp drivers and the latest NVidia drivers, and the behavior is the same all around.

Mini DisplayPort auf VGA Adapter not working

Hi,
While in Germany I bought a 'Mini DisplayPort auf VGA Adapter' in order to be able to do presentations on a Beamer. This worked fine for a couple of weeks but now has stopped working.
I reinstalled the operating system to be sure that no drivers are missing but still would not work. I borrowed the same adaptor from a friend and his works fine.
How can I have it exchanged please? On top of that I am not sure I can still find the receipt because as it was working fine for the first few weeks I assumed it will remain fine and probably threw this away.
Any help is appreciated!

Thanks CellarDwellr.
I live in Vienna and things are always different here.
We do not have any Apple Store but a company that represents Apple called McShark.
I went to them with the adaptor and they said they needed my MacAir serial number in order to send it in. Never heard that in order to replace a faulty cable one needs also the serial number of the machine, did you?! ...
So I go home again and get the serial numbers of both my iMac and my MacAir.
After waiting on them for over half an hour they say they may still not be able to send it in because I do not have the receipt of the purchase. I asked why they could not have told me this earlier on instead of wasting half my day ... The assistant said, yes they could have, but didn't even apolgoize!
Anyway she needs to verify with her colleague and call me on Monday to tell me if they can send it to Apple or not.
Unbelievable bad service and even worse attitude. If anyone from Apple company reads this my suggestion is to revise their association with this company as it ruins the good brand they have.

DisplayPort to HDMI adapter NOT WORKING!!!!

I have tried and tried and can't get this working. I'm on a T500 and running Windows 7. The T500 just doesn't recognize the external monitor when I have the displayport to hdmi adapter plugged in and an hdmi cable running from that to the external monitor.
HELP PLEASE???

I don't have the same ThinkPad as you (I have a T410 with discrete graphics), but I DO have the same Monoprice DisplayPort to DVI adapter, and I can confirm that it does work, when connected via a DVI cable to a Viewsonic LCD monitor. I did notice that, when the monitor goes into power-saving/sleep mode, the laptop won't recognize it when the laptop resumes from sleep. I had to toggle the monitor power swtich off/on, and then select it with the laptop's Fn-F7 hotkey (the laptop utility calls it a "projector"). So, you might have to fiddle with that.
By the way, my 19-inch Viewsonic LCD shows just how crummy the ThinkPad's LCD is, by comparison. The image via DisplayPort/DVI is fantastic. The NVIDIA control panel confirms that the ThinkPad<-->dongle<-->DVI cable<-->monitor connection supports HDCP, by the way, so it'll play protected content.
When I get around to it, I will also try plugging the ThinkPad into my TV via the similar MonoPrice HDMI / DisplayPort dongle.
--Steve

Mini displayport to dvi adapter not working

hello,
I have both a 2008 Mac Pro tower with 2 Apple Cinema Displays, and a newer MacBook Pro that I'd like to hook up to one of the monitors.
The 2 monitors are both DVI, so I bought a mini displayport adapter to plug into the thunderbold port on the MacBook Pro and the other end to the monitor.
When I plug it all in, I get no video on the monitor. I am sure the monitor works, I'm sure the cables work (from the monitor), not sure about the adapter (I just bought it, so it could be bad)....
I did see quite a bit of the same issue online, thought I couldn't find any help in fixing it.... short of driving back to the apple store and replacing the adapter, I'm wondering if there's anything else I should do to trouble shoot this....
I've restarted the computer, checked all connections, nada....
help??

The problem was simple: my laptop wasn't plugged in...
The desk where the Mac Pro is isn't where I typically use my laptop, so I carried the laptop over and plugged the monitor in, when that didn't work I looked online and checked here- I also returend the original adapter to the apple store. I inquired about it there, and the genius asked if my laptop was plugged in when I tried it out... sooo when I got home I tried it again with the new adapter and with the laptop plugged in, and it worked right off the bat with no trouble shooting or "detect display" necessary...
The laptop must be plugged in for the external monitor to show up...
now I know.

Connecting a mini displayport to HDMI does not work

I recently purchased an new MacBookAir and bought a new mini diplay port to HDMI adapter. However, when I connected the port to my LED Samsung TV, only the display screen from the laptop was projected on the LED TV Screen. The icons were missing and couldn't even find the cursor on the screen. What should I do to have this work?

It's working. This is called 'extended desktop mode'. Grab an application and drag it off the right side of your monitor and it will appear on the TV.
You can visit System Preferences > Displays > Arrangement tab for all the options.
To mirror your monitor on the TV hit CMD F1
Regards,
Captfred

Mini DisplayPort to VGA adapter not working

Hello all!
I purchased a new adapter today off amazon. When I plug it in (with or without VGA cable attached) the screen goes blue for a few moments and comes back to my OS Screen, however, none of my external displays are recognized! My projecter, HDTV, 4:3 monitor, and my Dell 16:10 monitor are all undetected. I tried installing the infamous update and it did not want to (said could not detect adapter). I'm assuming it's rather new seeing how it said thunderbolt on the box, but the box came all ripped open.
Other than returning the product, is there any way to try to get this thing working?

Yeah i tried it with another 19" monitor which had the same outcome, there was a signal but no image.
If it's not working with two different monitors, that's a pretty sure sign the adapter is bad.

HT3492 mini displayport to vga adapter not working under windows 7

i've read the article above. How can this firmware affect operation under Windows 7 OS? I have a dual boot system and tested several mini dp-vga adapter, all of them seem to either stop working after a while or doesnt work at all. i have a macbook pro 13"(early 2011) and a macmini i5 4gb

I'm having the same problem. When I try to connect to the switch in our conference room (connecting both a flat panel display and/or a projector, both with much higher native resolutions), all I get is 640x480. This is a huge problem to using bootcamp, and I really need to get this to work. I was able to get a higher resolution 1280x800 on a separate, portable display, so I'm wondering if people have the problem with standalone projectors or only with projectors connected to some sort of switch, in my case an Extron MPX423A. I have also tried this in both Windows Vista (32-bit) and Windows 7 RC1 (32-bit), with the bootcamp drivers and the latest NVidia drivers, and the behavior is the same all around.

HT202079 Why does the Belkin 4K Mini DisplayPort to HDMI Adapter not make sound on the tv?

I connected my cable to my tv and it displays on the tv just fine but no sound comes from the tv only the laptop. What do i need to do?

You have provided no useful information to help other users help you on your problem, we have no idea what iMac you have or the version of OS X installed on it. Without those barest of details getting an answer is difficult at best.

Mini DisplayPort to HDMI Adapter by Belkin for iMac 2009 failed to work

This is an SOS message. I have purchased another Mini DisplayPort to HDMI Adapter and I have iMac (27-inc, Late 2009) running OS X Yosemite (Version 10.10.1). I have carried out the connection of Mini DisplayPort to HDMI adapter to LG Plasma TV Screen, but there is no sign of any of the equipment reading or aware of the connection. Is there anybody out there who can help me make it work? Also, why is that Yosemite - System Preference, click on Displays does not contain - Arrangement? I'll greatly appreciate any useful tips from the community or apple support team.

Eric has helped in providing in dept understanding around the subject matter, but unfortunately, it has not provided the solution to the problem.
The Mini DisplayPort to HDMI Adapter when connected to the external Plasma TV screen, nothing happens. The System Preferences was accessed -and the Displays monitor sign was clicked, but it only showed - Display/Colour, which according to the instructions / descriptions contain in the - Video Troubleshooting Internal and External Monitors literatures and video, there seems to be missing - Arrangement / or AirPlay from my OS X Yosemite version.
The above is the version of OS X Yosemite - showing on my *iMac when clicked on System Preferences, and as result I have not been able to make the Mini DisplayPort to HDMI Adapter to LG Plasma TV Screen to work.
My *iMac is -
iMac (27-inch, Late 2009)
iMac10,1
(10.10.1)
MB952XX/A
Running OS X Yosemite
When the above image is compared with the following image below, there is definitely something missing and it’s probably affecting the Mini DisplayPort to HDMI Adapter to work in my connection.
Questions:
How can I make my iMac 10,1 (27-in, late 2009, currently running OS X Yosemite 10.10.1) to have the above AirPlay mirroring or Arrangement to activate the connection?
Are there other ways I can make the connection to work?
Is there any body who has a similar iMac specs and OS X Yosemite who has overcome connecting to external Plasma TV Screen?

Mini display port to HDMI adapter not working

I can not get my MacBook OS X to dispaly on my new Samsung LED TV. I have a mini display port to HDMI adapter (two years old) conneted with an HDMI cable (new) into the HDMI input on the TV. I tried both inputs, tried resetting the TV, plugging, unplugging, restarting, checked all my system preferences...I can not figure it out. I took my cables to a local store, tested the HDMI cable, and it works. Tested the adapter and they had the same problem I have on my Mac. The screen will flash blue when you plug it in, but will not show up in the TV. I think the adapter must be bad, nothing else makes sense???

Hi Kater24,
Apple doesn't make a Mini DisplayPort to HDMI adapter, so the one you've got there is a 3rd party one that's designed to work with the Mini DisplayPort on your Apple computer. The adapter is pretty much plug-n-play, there's no configuration necessary. Plug it into the machine, the HDMI cable from the other end of the adapter into your TV, select the HDMI input on your TV and fire up the computer.
If that's not working it's possibly an issue with the adapter and/or cable to the TV. Any chance you might have access to another TV for troubleshooting purposes?

Mac is not connecting to TV after using Mini DisplayPort to HDMI Adapter Cable?

Macbook Pro is not connecting to TV after using Mini DisplayPort to HDMI Adapter Cable. 2010 Macbook Pro, just purchased Mini DisplayPort to HDMI Adapter Cable from Amazon. Link here: http://www.amazon.com/Mini_Dis-HDMI-CB6-Mini-DisplayPort-Adapter-Cable/dp/B003OC 6LWM/ref=sr_1_2?ie=UTF8&qid=1406238976&sr=8-2&keywords=mac+to+tv --When i connect both ends of the cable to the TV and to the laptop, the screen will blink, but then afterwards it will not mirror on the TV. I have tried going to display setting but cannot find the arrangements tab. When i searched "arrangements" a message said, "The Arrangement tab of Displays preferences is hidden because you only have a single display attached to this computer." Not sure how to fix this problem. I have connected this laptop to a TV before, but with a different cable other than the one i just purchased. Any help would be greatly appreciated, thanks.

Found the fix. Still don't know if it was Windows, iTunes, or Norton 360, but this worked immediately for me:
+++++++++++++++++
edgravel
Re: iTunes Store Won't Load, Won't Show Error Message
Aug 13, 2011 4:32 PM (in response to Daedalme)
I found a solution posted from Rodfromnework for PC users. It worked for me and easy to do.
Start --> Programs --> Accessories (Right Click on Command Prompt) --> Run as Administrator
then type in:
Netsh winsock reset
Hit enter, restart PC, open iTunes, go to Store
Hope it works for you too.

Mini DisplayPort to HDMI Adapter plays video but does not do Audio

Ok I was told by someone at the Apple Store durring my one to one secession that I could get a mini to HDMI cable and the video and audio from my laptop would be displayed on the TV.
This was the cable I was told to get http://www.amazon.com/gp/product/B0025V2VO0/ref=oxya_ohproduct
Mini DisplayPort to HDMI Adapter (female) Cable for Apple Mac
Now it displays the video on the TV but no audio.

http://en.wikipedia.org/wiki/Mini_DisplayPort
Apparently it's the current range of MBP's that's the issue. In theory, the displayport standard supports audio.

Mini DisplayPort to HDMI Adapter Not Working

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