Convert mini display port signal to a composite by software

I have already bought a VGA to RCA cable and when I connect it to my original Apple MDP to VGA adapter the screen freaks out. Most probably it's because the 3rd party cable has to receive a composite signal and not an separate RGB + other signals (Hor Sync, Ver Sync) etc.
When I was searching for these kind of adapters I sometimes read that one has to check if his computer can output a tv signal from their VGA port. Most probably they would be referring to the fact that your computer has to manage to output a composite signal through your VGA port.
So I was wondering if there is a way to get my mac to output a composite signal from my mini display port using some kind of software.
Thanks for your help in advance.

Hi Jim,
Just to clarify, you state that you have a MacBookPro5,1, which is the late 2008 model. The video output on that model is a mini-DisplayPort, not a mini-DVI (like the pre-unibody MacBooks) or a micro-DVI (like your 1st gen MBA). DisplayPort is a different type of port. (Note - I requested an edit of the title of your post to clarify that).
When you connect the TV, in what sequence are you connecting? The 'proper' sequence is to connect the DVI-HDMI cable to the mini-DisplayPort to DVI adapter, have the HDMI end connected to the TV, have the TV set to Line-In, looking for a signal, then connect to the MBP last.
What happens when you connect it like that? Have you tried System Preferences > Displays > Detect Displays?

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Mini Display Port to VGA - S-Video/Composite

I'm trying to connect my MacBook Pro to (essentially to a projector) a splitter than only has inputs for S-Video and Composite. I know the only adapter is the Mini Display port to VGA. Is there a hub that I can run VGA into and output S-Video to the splitter? Will my laptop read this as a second monitor?

Yes to both questions. With the converter box linked below or something similar, a mini-Displayport to VGA adapter, and an S-video or composite video cable, you should be set to connect directly to a monitor or projector that has no VGA, DVI or HDMI inputs. It will appear as a second monitor. (A projector is just a very tiny flat-screen monitor with a big light bulb behind it and a lens in front.)
http://www.amazon.com/PC-To-TV-Video-Converter/dp/B001CJOLBW/ref=pdcp_e2
A word of caution, though: I don't know what effect your splitter may have. And if there are two or more monitors or projectors connected to the splitter, I don't know how that will work out either.

Is it possible to add a Mini Display Port converter to my MBP's thunderbolt to add a display ?

I use MBP (late 2011). I find the hunderbolt port to be similar to the mini-display port of older mac. I wish to have another display, but not ready to spend $999 over a thunderbolt display from mac. So would like to know if a Mini-diaplay port converter from apple would help me connect a exernal display via the thunderbolt port? Thanks .
Koushik

Koushik,
Did you check all of the display adapters Apple carries to see if there is one to fit your needs? There are also third-party adapters on the market that may do that conversion.
Ralph

How can I get a video signal using IMAC 27 with only mini display port. I like to send the signal wireless to a TV using a TV/audio transmit system.

I have an IMAC 27 with a mini display port ( only this). I also have all the adapters ( mini display port to VGA, HDMI...).
Since I moved to UAE I like to transmit the signal frm my IMAC ( where I also look German TV on) to my TV. I will do so by using a wireless Transmit receive system with theree cinch inputs ( transmit system ( video, 2x voice).
The distance to the TV IS ABOUT 10m and one wall. I don`t want to use a cable.
Is there any solution for example mini display to VGA + VGA adapter to cinch so I can use the transmit system?
HDMI would also be an optiekn, bat then I have to by another Transmit receive system.
If somebody made already the experience I would appreciate to share the information
Is there may be any store in UAE where to get support. It is very diificult to get good advice here. They sell everything bat can not reaaly explain and have very often no technical knowledge. With this problem nobody until now can help me.
Hans
<Email Edited by Host>

I don't know what AppleTV can handle as far as bit rate is concerned, but increase the bit rate as high as it will let you. You are taking DV which is 25Mb/s and compressing it. If you're making an H.264, you should get great results needing no more than 6Mb/s. Bear in mind, the higher the bit rate, the larger the file size.

I am trying to connect my MacBook Pro to my TV with a mini display port to HDMI converter. Its not working. Any suggestions?

I am trying to connect my MacBook Pro to my TV with a mini display port to HDMI converter. Its not working. Any suggestions?

Depends on your model TV. Read your TV user manual. The newer models have "how to hookup" instructions for computer & games.
You can also do a forum search as well as a Google search.

Mini display port to composite?

I'm a video DJ and have gotten tired of lugging around 2 DVJs, 2 mixers, and a case of DVDs to my gigs, so I decided to get a MacBook and join the ranks of the laptop DJs. I'm really starting to regret that decision. After dropping almost 3 grand on a MacBook, Virtual DJ software, and a midi player, I discovered that the only way to play video out of the MacBook is by the mini display port. No problem, I found an adaptor (http://www.amazon.com/gp/product/B004VV8R86/ref=cm_cr_rev_prod_img) and it'll work fine. Couldn't be more wrong. While that adaptor worked (and I've tried a variety of configurations also that worked to equal quality - Mini Display to VGA to RCA, Mini Display to HDMI to RCA with a variety of brands and converters) the picture quality is fuzzy, washed out and movement in the video is jerky to the point of being distracting.
I understand the whole conversion from mini display to composite is not the easiest thing. I've done a ton of research and reading about how the whole process works ( http://www.epanorama.net/circuits/vga2tv/vga_to_tv_techniques.html is an excellent article explaining a lot of it) but this just *****. Does anyone know a way I can get a good picture? Most clubs (I've actually never seen one here in the US or in Europe) don't use HDMI cables to hook up their TVs, I've always had to run composite, and if this doesn't work I'm looking at going back to my old equipment and selling the MacBook - which is not what I want to do!

As long as the clubs you're working in persist using antiquated analog TVs, you aren't ging to be able to make them display high-quality images.

I have a macbook pro with a mini display port out and would like to know how to connect the video from my mac to a TV with old RCA input video, or a TV with S-video imput. How can I do this, and do I need a video converter?

I have a MacBook Pro that I want to hook up the Mini Display Port video out to a TV with RCA video imput, or a TV with S-video iimput.
How do I do this, and do I need a video converter?
Dennis

there's an adaptor for mini dvi to s-video
a well known auction site would yield results if apple don't stock it

How can I get my 2010 mac book pro to send signal out through the mini display port? end signal out through the end video signal out through the

How can I get my 2010 macbook pro to send signal out through the mini display port?

First, what you said is contradictory. You say "can't get a video signal", then say"the Mac wallpaper is broadcast, the mouse pointer is visible". "No video signal" means an absolutely black,blank screen. It sounds like you have plenty of signal.
I am supposing what you are seeing is actually a blank desktop, which is to be expected if your settings are such that you are extending the desktop, instead of mirroring it.
Within the preference panes is a setting that allows you to change this. Open System Preferences, click Displays, and then click Arrangement. You will see that you are extending the desktop. Change that setting.

How do I get a video signal to an external monitor via the mini-display port on my Mac Book Air?

I can't get a video signal out through my mini-display port on my Mac Book Air (version 1). Thus I can't feed BBC iPlayer to an external monitor. There is some connectivity - the MAC wallpaper is broadcast, the mouse pointer is visible and sound is transferred. Is it likely to be a cable connection problem (though the cable works with a Windows operating laptop)?

First, what you said is contradictory. You say "can't get a video signal", then say"the Mac wallpaper is broadcast, the mouse pointer is visible". "No video signal" means an absolutely black,blank screen. It sounds like you have plenty of signal.
I am supposing what you are seeing is actually a blank desktop, which is to be expected if your settings are such that you are extending the desktop, instead of mirroring it.
Within the preference panes is a setting that allows you to change this. Open System Preferences, click Displays, and then click Arrangement. You will see that you are extending the desktop. Change that setting.

Mini Display Port to RCA (Yellow Phono)

I would like to connect my iMac to a secondary display like a TFT LCD TV Monitor or a projector via the Mini Display Port. Now since I used to connect my older iMac via it's Mini DVI port by an Apple Original Mini DVI to RCA/SVideo composite adapter, I had installed a 15 meters RCA cable from my computer to my TV/Projector.
Now I have already bought an Apple Original adapter for my new iMac that converts the Mini Display Port to VGA. I have also bought a VGA to RCA cable from eBay too, but when I connect the VGA to RCA cable to the Apple's MDP to VGA adapter the computer screen freaks. It's seems that they are not fully compatible.
Do I have to buy a Digital to Analogue converter which I found to be around 40 sterlings or shall I replace my previously installed RCA cable to a VGA cable?

Hi there, I'm not sure you'll find a lot of people here in the Tiger forums with 10.6.2 & a Mini Display Port, you might ask over here...
http://discussions.apple.com/category.jspa?categoryID=132

Can i use a hdmi to mini display port cable to use my iMac as external monitor for a windows laptop?

Does anyone know if a hdmi to mini display port cable can be used to link a windows laptop with an 27 inch iMac to use the iMac as an external monitor. Or are there other options to connect my DELL latitude 6430?

Is the 3.5mm-to-optical cable any better than using a standard 3.5mm? I don't know too much about this stuff. My thought process was that if the source of the connection is a 3.5mm jack, does it make a difference using a cable that starts as a 3.5 and converts to optical?
Chances are excellent that if your receiver is less than 20 years old it has an optical input, this is a digital signal which will sound MUCH MUCH better than using an analog 3.5MM to 3.5MM connection. I recommend using the cable suggested or one with the same connections but of a different length if your needs warrant it.

Question when using the Mini Display Port.

Hello,
I just got my 27" Imac, and I was wondering what is the hotkey to switch between the mini display port and the normal desktop?
Am using a Mini Display to DVI adapter and I can't figure out how to switch between the video sources. Am trying to run my Ps3 off from my mac, any help on what the hotkey is would be wonderful.
I read some place that command+F2 is the hotkey used to switch between the port, but maybe you have to assign the hotkeys?
There have been people who have been able to use there systems this way, and Apple states the port is there for this purpose; Any light on this subject would be nice.

Welcome to the Apple Discussions!
You can only run your PS3 on the iMac's display if you have an adapter that turns the PS3's video signal into DisplayPort signaling. A mini-DisplayPort to DVI adapter is the wrong adapter to use. That adapter works in only one direction, from a device with m-DP output to a device with DVI input.
If your PS3 has DVI output then you need an adapter to convert the DVI to HDMI. Then you need a converter to convert the HDMI to m-DP. They run US$149.00. The best resolution that you can expect is 720p.
http://www.kanexlive.com/products/kanexXD.aspx
Then you can toggle using Command+F2.
Dah•veed

Mini display port to RCA TV

Hokay, SO
I just had a very frustrating weekend. It ended with a broken TV and a cut hand, but we won't go into that at the moment.
I bought a Mini display port to DVI cable, as well as a DVI to Video cable both from the mac store. This was so that I could use an RCA cable to connect it to my tv which is a few years old. However, it seems to me that the Mini displayport to DVI cable and the DVI to Video cable aren't even really compatable. There seem to be prongs or pins or whatever coming form the one that the other doesn't even have a slot for. So needless to say, it didn't work.
WHAT can I do to watch movies from my brand new macbook 13" on my old tv using video cables!?!?!?!

There are 3 kinds of DVI plugs: DVI-A (Analog only), DVI-D (Digital only), and DVI-I (Integrated, Digital and Analog signal). If there are no pins above the blade, it is DVI-D, which usually has compatibility problems with certain analog-only peripherals. If it does have the pins, it is either DVI-A or DVI-I, which means that it does have an analog signal. Since RCA cables use an analog signal, the DVI to RCA adapter must use DVI-A I'd imagine. I'm guessing that the MiniDP to DVI adapter uses DVI-D. I don't know why apple would do that, since they have a MiniDP to VGA adapter which uses an analog signal, so MiniDP must be able to send an analog signal (unless the VGA adapter has some converter to convert digital signals to analog). Hope that wasn't too confusing.

Mini Display Port to DisplayPort Adaptor

Hello all,
I have recently bought a Dell U2711 to use the 2560x1440 maximum resolution with my Mac Book Pro 17", purchased in July 2009. I was wondering if I should buy a mini DisplayPort to Display Port adaptor, or a mini Display Port to HDMI adaptor to achieve the maximum resolution... Any suggestions...? Any cheap adaptors and / or cables in London?
Many thanks!

This would be a good solution for you <http://estore.circuitassembly.com/products/Mini-Displayport-to-Displayport-Ada pter-Cable.html> and they only charge 14 USD for shipping to the UK. It says their shipping only takes 2-3 days as well.
It's best to keep your signal in the displayport form, if you convert to HDMI you will lose maximum resolution.

Female Mini Display Port Adapter - Connect Monitor to Non Mini Display Port

Anyone know of a Female Mini Display Port Adapter, so I can connect the 24 LED Cinema Display to a computer that has DVI connector? Or hook the monitor up to a KVM, so I can use the monitor with multiple computers?
I know Apple doesn't make these, but does a third party?
Monoline appears to be coming out with adapters to hook a mini display port computer to DVI and HDMI, but not a mini display port monitor to DVI or HDMI.

'Mini Display port' is just a smaller version of display port, which is a slightly different version of HMDI.
No. You may be thinking of Mini DVI. Mini DisplayPort is a smaller verion of DisplayPort, which is different from DVI and HDMI.
<http://www.displayport.org/white-papers/whitepapers/DPTech_OverviewEnglish.pdf>
HDMI, display port, mini display port AND DVI are all capable of being 'converted' from one to another.
It is easy to make a Mini DisplayPort (card) to DVI (display) adapter because a DisplayPort card can be set to generate DVI signals. (Dual-link DVI is a bit more complicated since the adapter must sepatate the clock and data.). A DVI card cannot generate DisplayPort signals, so an adapter for a DisplayPort display with a DVI card would be a lot more complicated.
The ONLY thing that you would LOSE in a DVI to display port conversion is an audio signal.
HDMI is DVI video plus digital audio. DisplayPort does not use DVI video.
The point is they are all interchangeable, signal wise.
No. A DisplayPort card can generate DVI signals when a DuisplayPort to DVI adapter is detected, but a DVI cards cannot generate DiusolayPort signals.
But why should Apple make a cheap DVI to female display port when they can make more money on overpriced graphics card upgrades?
They can't make a cheap adapter, but they could have added a DVI port to the display.

Convert mini display port signal to a composite by software

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