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Mini displayport to HDMI cable questions

C

cronskies22

macrumors newbie
Original poster
Jan 30, 2013
4
0
I'm aware that the MDP-->HDMI cable has been phased out from electronic stores, but I was able to get a hold of one.

I just hooked it up to my LG LED TV model #: 47LS4500, my home screen for my MBP(late 2009 model) showed up on the screen after everything was connected, but it did not transmit sound, and it also did not give me an HDMI option for 1080p, also did not give me a refresh rate of 120hz (if thats possible). The screen was a little distorted at first, I was able to change the setting of the display but it wasn't an optimal setting that most people would agree with.

Mirror display is checked off in the arrangement screen, also I am given an display option box for- VGA, LG display, Color LCD.

I apologize if I didn't paint a perfect picture of my scenario, but any information that may help would be awesome.

THanks
 
Why are MDP to HDMI cables/adapter phased out from electronic stores?

Anyway, only 2010 Macs and newer support audio via HDMI.

Mini DisplayPort (MDP) / Thunderbolt
Mini DisplayPort is the current digital standard on all current Macs to transfer video to an external display or TV. It has been introduced in 10/2008 with the release of the Unibody MacBook and MacBook Pros and has gradually been adopted on all other Macs.
MDP is capable of transmitting video, and since 2010, audio too. MDP is a miniaturised version of DisplayPort. It is also license free and can support resolutions of up to 2560 x 1600, which Mini DVI and Micro DVI are not able to do.
Since 2011, all Macs come with a Thunderbolt port, which is meant for fast data transfer and also as means to connect to an external display device to mirror or extend the Mac's screen.
To learn more about Thunderbolt (TB) and its compatibility with Mini DisplayPort (MDP): Introducing Thunderbolt​
MR_video_out_Mac_Mini_DP.png
MDP adapters and cables can be bought online from:


Also of interest: "What is "Mini DisplayPort"? Is it an industry-standard? How is it different from or better than Mini-DVI and Micro-DVI?"
​
Click to expand...

And what exact MDP to HDMI cable did you get and what exact resolution did you set for the TV in System Preferences > Displays and what exact Mac OS X version do you use?
 
cronskies22 said:
I'm aware that the MDP-->HDMI cable has been phased out from electronic stores, but I was able to get a hold of one.

I just hooked it up to my LG LED TV model #: 47LS4500, my home screen for my MBP(late 2009 model) showed up on the screen after everything was connected, but it did not transmit sound, and it also did not give me an HDMI option for 1080p, also did not give me a refresh rate of 120hz (if thats possible). The screen was a little distorted at first, I was able to change the setting of the display but it wasn't an optimal setting that most people would agree with.

Mirror display is checked off in the arrangement screen, also I am given an display option box for- VGA, LG display, Color LCD.

I apologize if I didn't paint a perfect picture of my scenario, but any information that may help would be awesome.

THanks
Click to expand...

As far as transmitting audio, you're going to need a separate adapter for it as only the 2010+ models can push audio out of the MDP.

Have you turned off display mirroring? Doing so will allow you to set the TV in 1080p.
 
simsaladimbamba said:
Why are MDP to HDMI cables/adapter phased out from electronic stores?

Anyway, only 2010 Macs and newer support audio via HDMI.



And what exact MDP to HDMI cable did you get and what exact resolution did you set for the TV in System Preferences > Displays and what exact Mac OS X version do you use?
Click to expand...

thanks for the post i'm gonna look further into it later.

*mdp to hdmi CABLE. you won't find a cable with both ends in most electronic stores
- Fosmon Mini Display Port (MiniDP/mDP) to HDMI Adapter Cable for Apple MacBook, MacBook Pro, MacBook Air - 6 Feet (White)

I tried every resolution, I believe all three screens would change to same resolution unless it wasn't available in the one screen.

Currently still on snow leopard hahaha.

----------
snaky69 said:
As far as transmitting audio, you're going to need a separate adapter for it as only the 2010+ models can push audio out of the MDP.

Have you turned off display mirroring? Doing so will allow you to set the TV in 1080p.
Click to expand...

I'm pretty sure i tried it in the non-mirroring display selection. So MDP on the late 2009 will not transmit sound even if the cable is capable of both audio and video?
 
snaky69 said:
As far as transmitting audio, you're going to need a separate adapter for it as only the 2010+ models can push audio out of the MDP.

Have you turned off display mirroring? Doing so will allow you to set the TV in 1080p.
Click to expand...

kensic said:
try this

system preference - sound - output - select your tv.

cheers
Click to expand...

option isn't there for television, unless there's a way you can add it to the list?
 
cronskies22 said:
option isn't there for television, unless there's a way you can add it to the list?
Click to expand...

You cannot, as 2009 Macs do not support audio over Mini DisplayPort to HDMI. Only 2010 Macs (and the ones that followed in 2011 and 2012 and the ones, that will follow in 2013 and so on) have that ability.

You need either a Mini Displayport Male and USB Male/Toslink Audio to HDMI Female Converting adapter or Mini Displayport Male and USB Male Audio to HDMI Female Converting adapter or just get a cable using a 3.5 mm TRS connector on one side and RCA connectors on the other side.

 
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