mini dvi to component

Question

Level 1

0 points

mini dvi to component

I wanted to connect my iMac (Intel, mid 2007) to an external LCD TV which is around 30 ft away. I purchased a min-DVI to VGA adapter and a VGA to component video adapter. I wanted to watch HD movies on my TV via my iMAC

The component video cable from the iMac goes into a wall socket connection which goes to the other room where my TV is located. I then connect another component video cable from the wall socket outlet to my TV. I have also made similar audio connections. While I can get the audio playing... my TV says 'no input signal'.

A composite video connection works but the picture quality is poor, hence I was looking for a solution to get high resolution movies playing on my TV through my iMac.

Considering the above problem, would a mini DVI to DVI and then DVI to component video adapter work?

Any suggestions or solutions will be greatly appreciated.

iMac, Mac OS X (10.6.7), mini DVI to component video

Posted on Apr 28, 2011 4:42 PM

Reply

Answer 1

Dah•veed

Level 9

66,547 points

Apr 29, 2011 5:42 AM in response to ppaul2864

You are doing more than just using adapters that change the connectors. Your iMac's GPU's video signal by default is digital. The VGA adapter has a chip in it that signals the GPU to emit an analog VGA signal. But then you have added a second adapter that is changing the analog VGA video signal to a composite video signal. Your experience shows that the video signal is not surviving.

A mini-DVI to DVI is a just connector adapter, it does not change the digital signal, so why not instead just do one adapter, the Apple mini-DVI to video adapter, which has both S-video and composite?

Reply

Answer 2

ppaul2864 Author

Level 1

0 points

Apr 29, 2011 5:54 AM in response to Dah•veed

I believe you may have misread my message above. Previously, I was using a mini-DVI to S-video/composite video adaper and I was getting the output to my TV... but the picture quality was poor. So I decided to go with component video and hence the mini DVI-VGA-Component adapters.

I also noticed that when I connect my original mini-DVI to s-video/composite adapter, my iMac (system profiler) shows that a display connector is connected. But when I connect the mini-DVI to VGA connector, it says no display connector is connected.

Is there any was to check if this mini-DVI to VGA adapter is functioning properly ?

Reply

Answer 3

Dah•veed

Level 9

66,547 points

Apr 29, 2011 6:25 AM in response to ppaul2864

English is not my first language and I sometimes get composite and component confused.

You may well have a faulty adapter. Can you return it to be tested or for an exchange?

Reply