THUNDERBOLT/HDMI

Why does my thunderbolt/HDMI cable not work on my macpro - for watching what is on my LT on my tv?

To set the resolution for your display, the Mac sends an EDID request to the display, and the display is supposed to answer with its name and its capabilities.
The request is sent out only at certain times, and the TV must be set to the correct input and must answer, or the display stays dark. These times are:
• At Mac Startup
• System Preferences > Displays ... Hold option key and click (Identify Displays )
• When the Mac-end of the cable is inserted.
• At wake from sleep
If the display is identified, its name will become the name of the window in Displays Prefs for that display, and it will also appear in:
 menu > About This Mac > ( More Info ) > Displays .. and Report > Graphics and Displays

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MacBook Pro does not sense external monitor (Panasonic HDTV in my case) via thunderbolt-HDMI connection...Is update 10.8.3 helping anyone?

My MacBook Pro (newest model in 2013 so far) does not sense external monitor (Panasonic HDTV in my case) via thunderbolt-HDMI connection...Is update 10.8.3 helping anyone else who has this issue? I returned my multiple HDMI adapters after figuring out it had to be an Apple issue n not the adapters so I can't check it myself now.
Thanks!

I have late 2012 MBP 13" and connect to my Panasonic Plasma correctly.
But using the same cable, can't connect to an LG 47LM6200, the MBP detects the TV, the screen blinks blue, but the TV shows "no sinal detected" message.

Picture is blurry when i connect my screen (HP) with thunderbolt - HDMI

Hi I just bought a new macbook pro 13 inch. I am connecting it to my screen HP 2159m but I cannot get the same picture quality as with my old PC. It is dark and blurry in comparence. I have set it with 1080p 60hz wich is the highest resolution I can find in the settings their is no option 1920x1080 in the setting list. I called apple support but they couldn't fix the problem. I am connecting with thunderbolt - HDMI to my macbook. My PC was connected with DVI.

I now solved my issue by buying a DVI -mini display port adapter and connecting through my DVI cable to the monitor. But APPLE ...this is not good! you should resolve this issue so it is possible to connect with a HDMI cable.

Issues with Thunderbolt-HDMI connection on Mid-2012 MacBook Pro

I have a 2012 MacBook Pro (non-Retina display) and just bought a thunderbolt-HDMI connector, but it's not working. A screen appears on the TV, only it's not my desktop screen, but the standard galaxy image in most Macs. Any idea how to fix this issue?

Your TV is extending your desktop. You can drag some of your windows off of the MBP internal screen onto the TV. You can control how the two screens are related spacially at System Preferences > Displays > Arrangement.
If you want the two screens to show the same picture, you should turn off "mirroring" on that same setting page.

2nd display connected to iMac stays black (Thunderbolt - HDMI)

Hi everyone,
with my new iMac (purchased 2 weeks ago) I have the problem that my 2nd display will stay black after I connected it to the Thunderbolt port. The display shows the blue background for a split second, then i goes black (and stays that way). I find the following lines in the log file:
Feb 15 18:18:34 Edoras Dock[157]: kCGErrorIllegalArgument: CGSCopyDisplayUUID: Invalid display 0x003f003d
Feb 15 18:18:34 Edoras Dock[157]: uuid_callback_master: failed to retrieve UUID for display 0x003f003d (1001) (invariant failure)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
Feb 15 18:18:37 Edoras Terminal[513]: _NXGetScreenRect: error getting display bounds (1001)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: _NXGetScreenRect: error getting display bounds (1001)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: _NXGetScreenRect: error getting display bounds (1001)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: _NXGetScreenRect: error getting display bounds (1001)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: _NXGetScreenRect: error getting display bounds (1001)
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetCurrentDisplayMode: Invalid display 0x78c8d3f5
Feb 15 18:18:37 Edoras Terminal[513]: kCGErrorIllegalArgument: CGSGetDisplayBounds: Invalid display 0x78c8d3f5
The display is an AOC e2343F2, with two HDMI and one VGA port. I am using a Mini-Displayport to HDMI cable to connect the display. This worked with my Mac Pro (from 2006, AMD Radeon HD5770) without a problem.
Is this a problem with the in 10.7.x included drivers?
With the new Thunderbolt port?
I tried it with 10.7.2 and 10.7.3 on the iMac and the Mac Pro. It works like a charm on the Mac Pro, but not on the iMac. Do I need to buy the overpriced Apple adapter and can't use my adapter cable anymore?

Just a theory. Looking at the log errors you showed the system cannot get the display bounds. My theory is that the display is not able to pass the EDID (extended display identification data) through a TB port. While your 5770 could handle it the TB can't. Again, it's just my theory.
Another thing to check is your Displays system preferences. See if the Display is showing in the Arrangement tab. If so click Detect Displays and also Gather Windows to bring the second monitor's Displays preferences on to your main monitor. If you get this far then set the appropriate resolution and refresh rate (if refresh rate is shown).
If there is no Displays Arrangement tab then the system doesn't even know the second monitor is connected. I don't have a solution for this problem since I don't have TB. Although the resolution is not as good you may have to try a VGA adapter for that monitor. No guarantees that will work either of course.

Need help hooking up HDTV to iMac using Thunderbolt/HDMI on OS Lion

I have been trying to figure out why my HDMI television gives me a "No signal" message when I hook it up to my iMac. It is the 2.5GHz Intel Core i5, running OS X, version 10.7.5.
How do I hook this up? I just bought a new TV and the one I had before this, I used to just hook the HDMI cable in from the Thunderbolt port to the HDMI port on the back of the TV and it would immediately just come on. Now I get a "No signal" message when I do it. Is there a setting somewhere I'm missing?
Thanks.

Do you have another adapter / cable to test with?
what about another port on the TV?
What about trying the old tv?
you could check the display settings:
apple menu
system preferences
show all
displays
arrangement tab (arrangement tab only shows up when the mac detects a 2nd display. )
gather windows

Unable to connect Macbook Pro to Sharp Aquos TV through thunderbolt HDMI

I have a brand-spanking new Macbook pro 15" Retina with Thunderbolt
A new moshi HDMI connector, and new MediaBridge hdmi cable connected to my Sharp Aquos TV and it's as if its not plugged in.
I've read a lot of helpful sites with instructions on how to do this and this just isn't working.
What am I doing wrong?

If you cannot use nslookup <PrinterIP> and get a name back, Bonjour (aka mDNS) is being blocked by the router.
Please also see Well known TCP and UDP ports used by Apple software products - Apple Support.

External HD projector DVI / Thunderbolt / HDMI ?

Hi
I have two MBPs , one vs10.5 and a recently bought one with vs 10.9 installed.
I do Video movies in HD 1920 x 1080, which I project on a large screen using an HD 1920 x 1080 projector.
With my 10.5, I connect it to the projector using a DVI to HDMI cable, and it works fine.
With my 10.9 , I connect it to the HDMI input of the projector using the Thunderbolt port to an HDMI cable via an adaptor.
The latter produces a very wishy - washy picture ... flat, dull, no contrast etc ... I can boost the settings of my rojector to get a better picture, but it still does not equals the quality of the picture I get with my 10.5 using the DVI to HDMI cable.
I am thinking of getting an adaptor to connect my 10.9 MBP Thunderbolt terminal to a DVI adaptor and then on to my HDMI cable.
Has anyone experienced a similar situation ?
Cheers and all the best for 2014
jcr

Thank you Malcolm.
As you state, they use the same signals. I bought a Display port adaptor to DVi and it is the same. I shall have the unit checked out.

Thunderbolt HDMI HDTV issues

Ok, so I have the latest model 13" macbook air with Lion, and when I connect it to my 720p hd tv to watch movies, the display/sound fades in and out. i.e. it works notmally for 10-30 seconds, then blacks out/mutes the audio (coming through HDMI). I am using the griffin adapter. Same issue occurs at different resolutions.
The same adapter/computer works fine on my 720p projector (no flickering).
The same adapter/ HDMI cable(tried 2)/TV works fine with my pre-thunderbolt mac book pro.
Same issue with or without audio running through HDMI.
HELP!!!!

When I run my macbook air, via a different thunderbolt to DVI adapter, it works find (but no audio).

Thunderbolt HDMI adapter compatible with my DisplayPort?

I have a mid 2009 Macbook Pro, but may eventually get a newer one that has Thunderbolt instead of mini DisplayPort. For the time being, however, I need an HDMI adapter. If I purchased a Thunderbolt to HDMI adapter, would it at least transfer the video signal on my mid-09 (I already know it wouldn't transfer audio)? I would rather buy one adapter that works with both my current macbook and a newer one, versus buying a specific one for each. Basically, I'm asking if a Thunderbolt to HDMI adapter would serve the same purpose as a DisplayPort to HDMI adapter, for a computer that does not have Thunderbolt.

Welcome to the Apple Support Communities
Instead of buying a Thunderbolt to HDMI adapter, buy a Mini DisplayPort to HDMI adapter, because I'm not sure if a Thunderbolt to HDMI adapter will work with a Mac without Thunderbolt ports. Also, for the use you want to give to the adapter, you don't need a Thunderbolt adapter. That's because Thunderbolt and Mini DisplayPort use the same port, so a Mini DisplayPort to HDMI adapter will work with both MacBooks Pro.
The only difference between Thunderbolt and Mini DisplayPort is that Thunderbolt can transfer data, audio and video. As you want to connect an external display, you don't need to transfer data, so Mini DisplayPort will work for your use

Thunderbolt - hdmi issue

I used to run my late 2009 15" macbookpro with a mini displayport -->hdmi convertor on a dreamcolor monitor. Running this same cable on a new 15 inch with thunderbolt port to the same monitor produces a far inferior result. The display looks interpolated or something. Any ideas?

I have been to the Apple store and this is what i found out!
I had done a update
MacBook Pro EFI Update 2.1
and this is what caused the HDMI problem, it is a firmware update so there is NO FIX until they adress it and a new update come out.
Please can they do this quickly.
Hope this helps someone not download this update....

2012 mini with 2 thunderbolt + hdmi

I haven't been able to get a solid answer either way on this, so I'll ask specifically here and hopefully someone has tried. The new mini says on the features page:
"You can daisy-chain as many as six Thunderbolt devices — including two Apple Thunderbolt Displays — to a single port."
The 13inch retina macbook pro has the same Intel HD 4000 GPU and is capable of running its own screen at 2560x1600 plus two 2560x1440 thunderbolt displays and even the macbook air with HD 4000 can run its own display plus two thunderbolt displays.
So, is the new mini capable of running two daisy chained thunderbolt displays at 2560x1440 PLUS a 1920x1200 display over HDMI? Seems like it should technically be able to just fine if the MBP and macbook air can (especially if it's the i7 version), but I can't seem to find anyone that's tried yet

Here's from the Apple support doc's:
http://support.apple.com/kb/HT4885
They specifically list that the higher end graphics on the Mac Mini's can not only handle (2) TB displays, but also use the HDMI port as well...

Very bad audio quality through Thunderbolt/HDMI

The last year or so I had been using a Windows 7 laptop, connected to my HDTV as an extra display through an auxilary cable for the audio and a VGA for the video, then I plugged in another cable to the headphone socket on the TV which ran into my 2 channel stereoand the quality of the audio and video was always excellent. I recently got a MacBook Pro 13" (mid-2012), it's the best thing ever. I'm doing good with learning all the tips and tricks for Mac, but there is one problem I can't fix. I bought a Thunderbolt to HDMI cable, and plugged it into the MacBook to the TV, and the video is outstanding, but the audio is completely opposite. It is absolutely terrible. The mid frequencies sound alright-ish, but the high treble and bassy frequencies are just really, really bad.
Through headphones or even out the in-built speakers, everything sounds better.
I've tried it on multiple TV's so it not the TV, it must be something to do with the output settings or the cable.
I don't feel like buying another cable yet, so I want to see if anything else works first.
Any ideas?

CJBaily14,
I would think it is the cable or adapter, but things you can check into are system preferences>sound,output tab and make sure your TV is selected in the side bar. Another is Applications>utilities>Audio MIDI set up, open that and click the output tab, select HDMI from the side bar on the left and try changing the rates and see if that does anything. If this does it with other TV's and you were using the sme cable/adapter, especially if the HDMI cable is old it might not have the spec for audio as all HDMI cables are not created equal.
You could also try a PRAM reset, power down, power back up holding the following keys: COMMAND+OPTION+P+R continue to hold these kys till you hear the start chime 2 times then release.
If you search the web for VESA specs you will find plenty of info. You can also check with Apple store for suff that is compatible.

Using thunderbolt HDMI as video IN???

hi,
can i use my HDMI connector via thunderbolt as a video in, eg for monitoring my video cam thru its HDMI video out on my MBP screen? any ideas?
thx!

ThunderBolt is a direct connection to the logicboard's PCI Express slot... which is basically the same port that a video card would connect to on a PC. Even though desktop video cards and many notebooks have HDMI connectors, they are not simply connectors that work both ways. The throughput is only part of the equation. The video card outputs through the HDMI connector. There is no circuitry within the video card to accept, process, and display an incoming video signal. However, there are currently USB devices that will accept video input ( http://www.elgato.com/ ). If video can be streamed over relatively slow USB 2.0 speeds, there is no reason a company can't come out with a ThunderBolt device to do the same thing. So, it is "possible"... but whether or not anyone actually does it remains to be seen. ThunderBolt has a lot of potential. Fortunately with Apple including the technology in all of their new machines, they have created a market for devices that take advantage of it. I expect we'll be seeing any number of high speed video capture devices in the next few years.

Problems with the miniport display thunderbolt-HDMI

I have an iMac 3.4 Ghz Intel core i7, the software is Mac OS x 10.6.8 and I have a new TV HD LG 32" (LG 32LS5600- ZC) with 3 HDMI plugs. When I put the mini Display port in the thunderbolt plug behind the MAC and in the HDMI port of the LG tv nothing happens... why? I tried to switch on before the TV and after the Mac... the opposite... and to check in Preferenze del sistema to see if the voice rileva monitor worked... nothing. The HDMI cable works because I am able to see the satellite TV perfectly. The mini port display Kanaan is new, bought on Amazon few weeks ago... The Mac doesn't see the TV monitor which says: nessun segnale whatever I do!
May you help me?
Thanks

Pressing F9 and then clicking on iTunes didn't do anything, but I can close iTunes anyways, that isn't the problem. It is just the seperate video display window that is the prblem . As for the other suggestion I cannot right click, so I definatly cannot right click on the window. However if you know of a way I can get it to normal or even original size with out right clicking, that would be helpful.

THUNDERBOLT/HDMI

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