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MDP to HDMI testing results thread
- Thread starter Dgpsx7
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I just got this adapter too. works like a charm (video+sound) with my 2010 MBP 13" (10.6.4) and Sony XBR4. the adapter looks nicer than all the others too.
so no mini displayport -> hdmi cable that passes audio yet? I know there isn't any difference from using the adapter, but i'm OCD like that! Less connections the better.
edit: just found this one on ebay, claims to pass audio as well
http://cgi.ebay.com/6ft-Mini-Displa...tem&pt=LH_DefaultDomain_0&hash=item415111ad53
will purchase to see.
edit: just found this one on ebay, claims to pass audio as well
http://cgi.ebay.com/6ft-Mini-Displa...tem&pt=LH_DefaultDomain_0&hash=item415111ad53
will purchase to see.
Does anyone know if the HDMI audio-out works with OS X 10.6.4 as I thought I read somewhere there is a problem with the audio for this update.
According to the review you linked to, your television "lacks an aspect ratio that provides for zero overscan" - I believe this means that you cannot correct the overscan. Try asking over at http://www.avforums.com/ if there is a way around this.
As far as I know it is only a problem for iMacs. I haven't heard it affecting any MacBooks with 10.6.4, indeed my 13" MacBook Pro passes audio through fine with 10.6.4. Here's a thread I found on the Apple Discussion forums regarding the problem: http://discussions.apple.com/thread.jspa?threadID=2467284&tstart=0
And for other UK members, I can confirm that this adapter works by Cablesson:
http://www.amazon.co.uk/DisplayPort-Adapter-Converter-Cablesson%C2%AE-Unibody/dp/B002WSM2N6/ref=sr_1_4?ie=UTF8&s=electronics&qid=1279736502&sr=8-4
There's only one little annoyance. I am now unable to change the volume via my Mac, either using the keyboard or remote, and can only do so via the TV and its remote. A few others have made the same complaint, so I was wondering is this just an unavoidable consequence of routing the digital audio straight to the TV?
There's only one little annoyance. I am now unable to change the volume via my Mac, either using the keyboard or remote, and can only do so via the TV and its remote. A few others have made the same complaint, so I was wondering is this just an unavoidable consequence of routing the digital audio straight to the TV?
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As far as I know it is only a problem for iMacs. I haven't heard it affecting any MacBooks with 10.6.4, indeed my 13" MacBook Pro passes audio through fine with 10.6.4. Here's a thread I found on the Apple Discussion forums regarding the problem: http://discussions.apple.com/thread.jspa?threadID=2467284&tstart=0[/QUOTE]
Thanks for this link, that has helped!
Thanks for this link, that has helped!
I received mine today and got it to work at my moms house with VLC. The audio was iffy at first. I had to select the TV's audio in systemprefs, as well as audio device in VLC. Sometimes my subtitles show up with weird lines around them, and the TV's brightness fluctuates like it's auto dimming. I'm gonna try out Plex later on and see if it's any different.
BTW, I have to use VLC because at home I use airfoil to transmit audio to my airport express, and VLC is the only application I know of that has audio desynchronization.
Like a lot of you guys I have the 2010 MBP and I'm looking for a MDP to HDMI that supports audio. I don't know much about audio. My question is, what is the difference between A and B..
A] Supports uncompressed audio such as LPCM.
B] Support compressed audio such as DTS Digital, Dolby Digital (including DTS-HD and Dolby True HD)
Some adapters support A and B and some only A. I want to be able to watch DVD's/DVDrips and some youtube videos.
A] Supports uncompressed audio such as LPCM.
B] Support compressed audio such as DTS Digital, Dolby Digital (including DTS-HD and Dolby True HD)
Some adapters support A and B and some only A. I want to be able to watch DVD's/DVDrips and some youtube videos.
You won't need to worry about LPCM since I doubt any DVDs or dvdrips have that..
And for other UK members, I can confirm that this adapter works by Cablesson:http://www.amazon.co.uk/DisplayPort-Adapter-Converter-Cablesson%C2%AE-Unibody/dp/B002WSM2N6/ref=sr_1_4?ie=UTF8&s=electronics&qid=1279736502&sr=8-4
There's only one little annoyance. I am now unable to change the volume via my Mac, either using the keyboard or remote, and can only do so via the TV and its remote. A few others have made the same complaint, so I was wondering is this just an unavoidable consequence of routing the digital audio straight to the TV?
Optical is pass through so of course you can't control the volume.
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I don't doubt that you're right, but can you explain that for me? I'm just curious to understand the technical reasons behind it.
Optical is pulses of light, it has a finite level of digital levels for the signal. Unlike a analogue waves amplitude which can be reduced to reduce the volume a digital one like this cannot as the reduced level would represent another level at full amplitude.
Similar to digital tv, im sure you know that you either have a picture or none, unlike analogue that goes staticy, the same goes in this case. you either have the signal or none.
Normally the sound signal isnt routed through the optical so you can control it in an analogue way on your macbook. When it is though, you can only amplify it after its turned back into analogue.
However HDMI does not use optical. But the same principle applies. the only way to change the volume is to change what is being sent as the digital levels. This can be done in windows and itunes when playing through hdmi. I would think that this should be possible in OS X and itunes.
Similar to digital tv, im sure you know that you either have a picture or none, unlike analogue that goes staticy, the same goes in this case. you either have the signal or none.
Normally the sound signal isnt routed through the optical so you can control it in an analogue way on your macbook. When it is though, you can only amplify it after its turned back into analogue.
However HDMI does not use optical. But the same principle applies. the only way to change the volume is to change what is being sent as the digital levels. This can be done in windows and itunes when playing through hdmi. I would think that this should be possible in OS X and itunes.
Can't be sure until I get the Griffin to confirm it's the laptop and not the adapter. I don't have any other mini-dp adapter, plenty of hdmi cables to test but all showed same issue and half of the cable refused to work with it.
I found a cable that passes audio and video
Anyone try this cable yet?
http://www.cableshark.com/Mini_DisplayPort_to_HDMI_CONVERTER_p/com-gc-mdp2mhd+a-6.htm
Anyone try this cable yet?
http://www.cableshark.com/Mini_DisplayPort_to_HDMI_CONVERTER_p/com-gc-mdp2mhd+a-6.htm
Test results for 27" iMac 2010
I have tested 2 adapters so far and they both work with 27" iMac ONLY when it's connected directly to HDTV. Since I connect via the av receiver, I ran into a few issues. The iMac freezes intermittently when the display is put to sleep or when source is changed in av receiver. Audio and video is also lost during the 2 scenarios. The only way to fix the issue is to restart the iMac.
The 2 adapters that I tested were the Moshi and Kanex. I also bought another adapter from monoprice that works with my av receiver and doesn't have any loss of audio and video signals and doesn't cause the iMac to freeze but the only problem is that it doesn't carry audio.
What I am trying to understand and figure out is why the Moshi and Kanex adapters work fine when connected to hdtv directly but doesn't when connected to the av receiver. What's the difference between the two? Any engineers in the house with an answer or a theory on this?
I have tested 2 adapters so far and they both work with 27" iMac ONLY when it's connected directly to HDTV. Since I connect via the av receiver, I ran into a few issues. The iMac freezes intermittently when the display is put to sleep or when source is changed in av receiver. Audio and video is also lost during the 2 scenarios. The only way to fix the issue is to restart the iMac.
The 2 adapters that I tested were the Moshi and Kanex. I also bought another adapter from monoprice that works with my av receiver and doesn't have any loss of audio and video signals and doesn't cause the iMac to freeze but the only problem is that it doesn't carry audio.
What I am trying to understand and figure out is why the Moshi and Kanex adapters work fine when connected to hdtv directly but doesn't when connected to the av receiver. What's the difference between the two? Any engineers in the house with an answer or a theory on this?
I know this is a bit late but I just found this thread so I will contribute as much as I can. I have tested the Moshi and Kanex adapters and they were tested with pioneer elite sc-05 receiver and i was able to get dd and dts. However, i was having issues using it through the receiver. Let me know if you run into any issues yourself.
I'm having a problem I hope someone could help me with.
My setup: MacBook Pro 15'' (2010 model), Moshi Mini-DP to HDMI adapter connected to a Philips TV (model 32PFL5605D/78 if it makes a difference), with its coaxial digital out connected to a 5.1 decoder I bought from eBay, though I've tried it with a Pioneer receiver too with no luck. From the start I should mention that this same setup is connected, on the TV's other HDMI input, to a Playstation 3 which is able to correctly play DVDs, SACDs and Blu-rays with 5.1 channel sound correctly. It's not an HDMI cable problem either as I've tried to switch the cables between the PS3 and the MBP and it didn't solve my problem.
What happens is that I can hear audio correctly, but it seems to be in Dolby Pro Logic. When I play a home theater test DVD which plays a test tone on each of the 5 speakers, I can hear front left, center and front right just fine, but surround left and surround right play through both surround speakers at the same time. I've read somewhere that I have to change the audio output setting in the preferences of DVD Player.app, but there's only a single option, System Sound Output. Also, when connected to a Pioneer receiver, the Dolby Digital light does not switch on, as it does on the PS3. Even the Info screen on my TV behaves differently: it says the audio is Dolby Digital when connected to the PS3, and Digital Stereo when connected to the Mac. I've tried playing with DVD Player.app, Front Row and VLC, no luck.
Also, I downloaded the following test tones in .AVI with AC3 sound from here: http://www.tfm.ro/ac3/, and no luck either. Note that I've followed the steps here: http://www.cod3r.com/2008/02/the-correct-way-to-enable-ac3-passthrough-with-quicktime/, in Audio MIDI Setup and fiddling with plists, but it didn't make a difference. In System Preferences -> Sound, my output device is correctly selected as Philips (type: HDMI).
I hope someone can see what I've done wrong, because I've spent an untold number of hours trying to fix this to no avail. In the meanwhile I'm looking for someone nearby who owns a receiver with HDMI input so I can see if anything different happens (I'm thinking the HDMI handshake with the TV may report it is a stereo device, even though the decoder upstream supports 5.1). Also, I've ordered an optical cable from eBay and will use that as a last resort, but would prefer if everything could go through a single cable, since that's certainly possible from what I've read in this thread.
My setup: MacBook Pro 15'' (2010 model), Moshi Mini-DP to HDMI adapter connected to a Philips TV (model 32PFL5605D/78 if it makes a difference), with its coaxial digital out connected to a 5.1 decoder I bought from eBay, though I've tried it with a Pioneer receiver too with no luck. From the start I should mention that this same setup is connected, on the TV's other HDMI input, to a Playstation 3 which is able to correctly play DVDs, SACDs and Blu-rays with 5.1 channel sound correctly. It's not an HDMI cable problem either as I've tried to switch the cables between the PS3 and the MBP and it didn't solve my problem.
What happens is that I can hear audio correctly, but it seems to be in Dolby Pro Logic. When I play a home theater test DVD which plays a test tone on each of the 5 speakers, I can hear front left, center and front right just fine, but surround left and surround right play through both surround speakers at the same time. I've read somewhere that I have to change the audio output setting in the preferences of DVD Player.app, but there's only a single option, System Sound Output. Also, when connected to a Pioneer receiver, the Dolby Digital light does not switch on, as it does on the PS3. Even the Info screen on my TV behaves differently: it says the audio is Dolby Digital when connected to the PS3, and Digital Stereo when connected to the Mac. I've tried playing with DVD Player.app, Front Row and VLC, no luck.
Also, I downloaded the following test tones in .AVI with AC3 sound from here: http://www.tfm.ro/ac3/, and no luck either. Note that I've followed the steps here: http://www.cod3r.com/2008/02/the-correct-way-to-enable-ac3-passthrough-with-quicktime/, in Audio MIDI Setup and fiddling with plists, but it didn't make a difference. In System Preferences -> Sound, my output device is correctly selected as Philips (type: HDMI).
I hope someone can see what I've done wrong, because I've spent an untold number of hours trying to fix this to no avail. In the meanwhile I'm looking for someone nearby who owns a receiver with HDMI input so I can see if anything different happens (I'm thinking the HDMI handshake with the TV may report it is a stereo device, even though the decoder upstream supports 5.1). Also, I've ordered an optical cable from eBay and will use that as a last resort, but would prefer if everything could go through a single cable, since that's certainly possible from what I've read in this thread.