Monitors Blinking with Mini DisplayPort to HDMI

I have two monitors (Samsung SyncMaster SA550 & Dell S2409W) that constantly blink when hooked up via a Mini DisplayPort to HDMI. The only thing that solves the problem is to use a Mini DiplayPort to VGA adapter. But, I'd like to utilize the HDMI. My Lion software is up to date. Any fixes you can recommend?

I fought with this with my Samsung SyncMaster SA550.
Check your brightness setting. Mine was at 100%.
I dropped it down to 65% and the monitor hasn't flashed since. (I think just changing the brightness setting may do it, but I dropped it down to be safe).
This wasn't the first thing I tried, but eventually got to this point. Hopefully this will save someone else some time.
Jay

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Can i attach my macbook pro to 2 external monitors using a mini displayport to HDMI connector and then an HDMI to dual DVI connector?

I would use the 2 external monitors in closed lid mode with my macbook pro
would it let me work with an extended dual monitor desktop ??

Any answers? I a similar question. If theres any way to connect my MacBook Pro into 2 monitors. I'm using right now just one.

Can I put a Moshi Mini DisplayPort to HDMI Adapter (with audio) in a thunderbolt port in the new macBook Pro

can I put a Moshi Mini DisplayPort to HDMI Adapter (with audio) in a thunderbolt port in the new macBook Pro, will it work?

Should work perfectly.

Mini DisplayPort to HDMI adapter with sound

There are 2 Mini DisplayPort to HDMI adapters that combine sound into the HDMI signal, http://www.monoprice.com/products/product.asp?cid=104&cp_id=10428&cs_id=1042802&pid=5969&seq=1&format=2 (one that uses USB for the audio) and http://www.monoprice.com/products/product.asp?cid=104&cp_id=10428&cs_id=1042802&pid=6331&seq=1&format=2 (one that uses the mini TOSLink for the sound). The USB sound one is cheaper, but does it output a true 5.1 signal? I know the more expensive TOSLink one will, but if possible I'd like to get the cheaper adapter. If it outputs a 5.1 signal, I can get the USB sound adapter, otherwise I'll get the pricier TOSLink one. Thanks, Zach

Only the adapter with Toslink can supports the 5.1 Channel audio. You can get the product through the Link: http://www.cablematters.com/pc-56-26-mini-displayport-male-and-toslink-audiousb- male-to-hdmi-female-adapter.aspx
There is more helpful information on its site and has Youtube video. http://www.youtube.com/watch?v=oc1zI7LMlls

Hi all, I'm trying to connect my macbook pro to Sony Bravia tv using Kanex Mini DisplayPort to HDMI Cable with Audio Support , when connected to the HDMI on tv I get a picture of the mac screen saver ( the starburst ) no video/audio,thanks, Derek

Hi all, I'm trying to connect my macbook pro to Sony Bravia tv using Kanex Mini DisplayPort to HDMI Cable with Audio Support , when connected to the HDMI on tv I get a picture of the mac screen saver ( the starburst ) no video/audio,any ideas? thanks, Derek

Dave I'm glad to say that it works perfectly but I'm embarrassed to say that my 12 year old nephew hooked it up in about 10 minutes.
If you have the Kanex Mini DisplayPort cable it will work, what confused me was changing the display settings in System Preferences,
and dragging the mac screen from the mac onto the tv. Sorry I cant be more helpful but you have the right cable now you need a 12 year old nephew.
Good luck Derek

Any Mini DisplayPort to HDMI adapter with audio for macbook pro mid 2009

connecting MacBook Pro (15-inch, Mid 2009) to Hisense TV with audio?!?!!?
hello everyone.
if anyone is familar with successfully getting the older macbook pros that dont support audio out to stream and preform digital audio on a TV or has any helpful information that will get me familiar with trying to successfully stream audio and visual. and can PLEASE HELP ME in any way to understand what they know and teach me how to solve my problem id really appreciate it.
i want to connect my MacBook Pro (15-inch, Mid 2009) to my Hisense LED LCD TV, ModelNumber:40H3E and getting digital audio sound from my TV as well as video, but have no clue on how or where to even start to successfully pairing the two and getting sound.
I own a MacBook Pro (15-inch, Mid 2009) this MacBook model doesnt support an HDMI port. My MacBooks model has the Mini Displayport which supports video out but does not support audio out. Can someone help me by telling me exactly which Mini DisplayPort to HDMI adapter with audio will support my model MacBook Pro (15-inch, Mid 2009) and exactly what HDMI wire do i need to buy that will successfully preform digital audio and sadisfying quality visual through TV?
i have NO expierence with the proccess have NO knowledge about any of this or these Mini DisplayPort to HDMI adapters with audio. i have no idea what kind of adapter and HDMI cord to buy that will give me sound from my tv for my type of macbook. '
im not familar AT ALL with any of this so i hope me giving you my MacBook Pros make and model and my TV's model number will be enough information for someone to help me.
just please give me anything you can on this topic
thank you so much,

With a 2009 MacBook Pro, you need to use two connections to your TV: one for video and another one for audio. The miniDisplayPort on the 2009 models does not support audio, so you need a separate audio cable:
miniDisplayPort adapter for video - I use the Apple miniDisplayport-DVI adapter + a DVI-HDMI cable like this one
audio cable for audio - use a 3.5mm male stereo-to-2xRCA male cable like this one
Connect the miniDisplayport adapter + DVI/HDMI cable to your MacBook Pro's miniDisplayPort output and the HDMI input on your TV
Connect the audio cable to your MacBook Pro's audio out and your TV's audio in
The only potential gotcha is if your Hisense TV requires audio via the HDMI cable when you use an HDMI cable. The H3e user manual is unclear about this.

I purchased a 3rd party mini displayport to hdmi adaptor. My 2011 macbook air with thunderbolt wont detect the display.

I purchased a 3rd party mini displayport to hdmi adaptor. My 2011 macbook air with thunderbolt wont detect the display.

Is the display turned on? Sometimes it is the simplest of solutions, when details are missing.

Connecting my macbook pro 13" to Sony bravia via mini Displayport to HDMI

Hi,
yesterday I bought a new LCD TV Sony Bravia KDL-32EX600 (Full-HD LED) that has 4 x HDMI inputs.
I also bought a mini Displayport to HDMI and HDMI to HDMI cable.
When I connect it to my computer, the screen goes blue for a second and it doesn't recognise any additional displays. There's also no video or sound in the TV, on the right HDMI channel. (I've tried every HDMI input and every channel)
I've tested the TV with another laptop that has straight HDMI output from the gfx card and it works perfectly.
I have up-to-date MacOS and I also upgraded my TV's firmware to the latest.
I thought that maybe the miniDisplayport to HDMI connector is broken but why does the computer try to do something when I turn on the correct channel on the TV?
I'm out of ideas..

Hi madhenry,
I know it's a month on from your post, but I thought I'd add that I'm having exactly the same problem. I'm trying to connect my new MacBook Pro (15" core i7) to my Sony Bravia KDL-40EX600 using a mini displayport to HDMI adapter. When I plug the cable in, the MBP screen goes blue for one second then goes back to normal, but the system just doesn't detect the external display.
I've tried the MBP on other monitors and it works fine, so there is nothing wrong with the adapter or cable.
I've also tried plugging two other Macs into the TV (a 2008 15" MacBook Pro and a 2008 MacBook) and the TV works great with both of them.
So, it seems there's something specific to the new MacBook Pros that makes them incompatible with the Sony EX600 TVs.
I just talked to AppleCare about it and after trying a few things (resetting the PRAM, etc.) I was simply told that there's nothing wrong at all with the Mac and that this is simply a "compatibility" issue that I have to put up with. So, it looks like we're out of luck until (hopefully) a new Mac OS update fixes the issue.
Peter

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 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

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

Macbook Pro Mini Displayport to HDMI problem Please Help!

I just bought a new Macbook Pro Core i7 15" and have it connected to a [URL="http://www.amazon.com/Samsung-P2370HD-23-Inch-1080p-Monitor/dp/B002DHS398 "]Samsung P2370HD[/URL] via a [URL="http://www.kanexlive.com/products/item-id-3689.html"]Kanex Mini Displayport to HDMI cable[/URL]. I'm running Snow Leopard 10.6.3 and have the resolution @ 1080p via system preferences and the "underscan" feathered a bit... (which I do not understand why I have to do this since I'm outputting at 1080p and the monitor accepts full 1080p as well. Can someone explain this?) however, small text is grainy, some larger bold text has a white wash behind it. Most things seem to have a slight blur as if there is a screen zoom happening just slightly. [URL="http://www.mac-forums.com/forums/apple-desktops/181687-mac-pro-samsung-ln 40b530-display.html"]As described in this similar post I found.[/URL]
My old setup was a late 2007 Macbook Pro 15" 10.6.3 connected to the same monitor I have now via Dual-Link DVI and it was crystal clear... It's hard to believe that the issue lies with Samsung, I've tried the same setup on my Sony Bravia in the living room, being that it's a much larger tv...I can't notice the artifacts as much but they are still present. Something is off.
My only other option I feel is to try a Mini Displayport to Dual-Link DVI but I chose the HDMI route for it's standardization and when I go to meetings/projections it's convenient to have one cable. Yes, I've checked cables, restarted everything ect... Can anyone help me troubleshoot this?
Thanks in advance!

Switched to a Mini Displayport to DVI cable and it works flawlessly. Still no idea, why the hdmi cable does not work properly.

Mini displayport to HDMI = fine. Mini displayport to VGA = terrible on late 2011 MacBook Pro. Any ideas?

Hello,
I have a late 2011 unibody MacBook Pro. It has a real problem displaying through a projector or tv using mini displayport to VGA. I connect it to my tv at home with a mini displayport to HDMI cable and it works fine. If I have to connect through a VGA adapter/cable to a tv or projector for work the image always looks like the contrast has been turned right up and it looks awful. I have tried creating a profile, calibrating the secondary display and adjusting gamma settings but it doesn't make any difference.
If I plug my old black MacBook into the same projector/tv using VGA it works fine so I now have to take 2 laptops to work which is ridiculous. I thought it might be the adapter itself but at a recent event a colleage experienced exactly the same problem with his identical set up so I thought it might be something to do with the projectors set up at the event but I recently tried connecting to a projector at a different event and got the same results and now I'm confused. I guess it must have something to do with the adapter but not sure what.
Any help much appreciated.

You really have to mess with the resoluton, espescially the refresh rate, as it varies from projector to projector, monitor to monitor. Even within the same brand! Because so many manufacturers are trying so many different things to become the next cool kid on the block, and the way the formats are being configured that's now part of the game.
That's why so many professionally produced corporate shows hire a dedicated projectionist for the video presentations. Too many bugs in the honey.
Refresh & sesolution are the first things to look at.
Just so you know that colors in PowerPoint PC, and PowerPoint Mac, don't exactly match... go figure.
I forgot to mention another thing, sometimes it's the projector that needs to be tweaked.

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

Just installed Lion on my 2010 MacBook Pro 15" (Intel Core i7). I bought a mini displayport to HDMI adapter and it doesn't seem to detect my 27" LED monitor. The screen flashes for a moment on my MacBook and my external monitor wakes up but suddenly goes into power save mode. Is there something I'm missing? I thought it was a simple plug and play. Any advice would be great.
Thanks.

Hello there people.
I have found the solution to this hdmi sound problem on lion.
I recently bought a TECHLINK WIRES MEDIA off ebay and it worked perfect with my 2011 apple macbook pro lion. I plugged it in to my 2008 samsung tv in to the hdmi 3 port and there it was sound and vision like you have never seen it before picture perfect and quality clear sound, just shut the lid and it displays on the big screen. The quality of this cable is excellent and i am wondering if it is worth paying that bit extra for a TECHLINK APPLE MACBOOK PRO MINI DISPLAY TO HDMI CABLE 2.0M as it might be the quality what you need to solve this problem.
Thanks everybody for your support on this subject, and thanks to jon who sent me the cable to do a review for him.
Feel free to leave a comment.

Thunderbolt 1.2 Killed Monoprice Mini DisplayPort to HDMI?

So I updated the Thunderbolt firmware yesterday to 1.2 through the App Store only to have my external monitor stop functioning afterwards. When I click on Displays in System Preferences, the monitor registers and the screen blinks blue when I connect/reconnect, but still no video. The adapter, Monoprice's part number 5311, was attached during the update and I had video all the way through the grey bar when it restarted. Can the firmware update ruin such a thing?
- Bill

Just as a follow-up to this, I couldn't wait for the new Monoprice adapters to arrive so I bought the Rocketfish RF-AP305 Mini DisplayPort to HDMI adapter from Best Buy this weekend ($24.99). I plugged it in and had video on my external monitor immediately. I imagine the same will happen when the Monoprice units arrive.
Again, I hate to believe it, but it's just too much of a coincidence that the Monoprice adapter stopped working immediately after this update for me not to think it was related to the firmware. In the future, if I see any Thunderbolt updates come down the wire, I will be disconnecting my display first
- Bill

Monitors Blinking with Mini DisplayPort to HDMI

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