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lendaddy 10-20-2008 12:33 PM

laptop to plasma via HDMI
 
Why when I hook up my laptop to my AV system via HDMI does the sound not work? I thought HDMI carried all signals. What am I missing here?

stevepaa 10-20-2008 12:59 PM

you have HDMI on a laptop? which one?


What is the AV system?

lendaddy 10-20-2008 01:47 PM

Quote:

Originally Posted by stevepaa (Post 4249949)
you have HDMI on a laptop? which one?


What is the AV system?


Dell XPS1530

The Receiver is a Sony and the Plasma is a Samsung.

stevepaa 10-20-2008 01:51 PM

so the HDMI from laptop goes to the Sony AV system then to the TV

how about connecting laptop to TV directly via HDMI and see if it is the Sony at fault.

Gogar 10-20-2008 02:32 PM

Is it possible there's a preference setting in the computer that controls what's coming out of that HDMI output?

Is it really HDMI, or a mini-DVI-HDMI adapter? DVI won't carry sound.

stomachmonkey 10-20-2008 03:01 PM

Quote:

Originally Posted by Gogar (Post 4250194)
Is it possible there's a preference setting in the computer that controls what's coming out of that HDMI output?

Is it really HDMI, or a mini-DVI-HDMI adapter? DVI won't carry sound.

Correct

If it is an HDMI out, (and they do exist, have one in my conference room,) then you do need to set sound out to HDMI in Control Panel.

If it's DVI then you need to run separate 1/8 audio out (headphone) to receiver input

lendaddy 10-20-2008 03:02 PM

Quote:

Originally Posted by Gogar (Post 4250194)
Is it possible there's a preference setting in the computer that controls what's coming out of that HDMI output?

Is it really HDMI, or a mini-DVI-HDMI adapter? DVI won't carry sound.


Maybe, I'll check into that.

It really is HDMI though, it's labeled as such above the connection.

lendaddy 10-20-2008 03:03 PM

Quote:

Originally Posted by stomachmonkey (Post 4250250)
Correct

If it is an HDMI out, (and they do exist, have one in my conference room,) then you do need to set sound out to HDMI in Control Panel.

If it's DVI then you need to run separate 1/8 audio out (headphone) to receiver input

I'll report back momentarily.
:D

lendaddy 10-20-2008 03:13 PM

I found it but it appears to already be "on".

fxeditor 10-20-2008 03:25 PM

Also check the type of HDMI cable you have. Earlier cables had problems carrying bot the vidro and audio data. I think the latest rev. of HDMI cables is 1.3a but do a check with a site like monoprice.com to be sure.

good luck,
Michael

fxeditor 10-20-2008 03:28 PM

I just thought of another potential snag for you. Your receiver might ONLY pass video via HDMI and not audio. The Onkyo home theater receiver I got for the bedroom had that problem.

Michael

Gogar 10-20-2008 04:04 PM

Quote:

Originally Posted by fxeditor (Post 4250295)
I just thought of another potential snag for you. Your receiver might ONLY pass video via HDMI and not audio. The Onkyo home theater receiver I got for the bedroom had that problem.

Michael

HEEEY that sounds familiar to me as well. Try straight from the laptop to the plasma and see what happens.

lendaddy 10-20-2008 04:21 PM

I'm going to try straight through. I think you guys are correct.

stevepaa 10-20-2008 04:23 PM

I feel like Rodney Dangerfield

lendaddy 10-20-2008 04:27 PM

Quote:

Originally Posted by stevepaa (Post 4250413)
I feel like Rodney Dangerfield

You're included in "you guys", :D

lendaddy 10-20-2008 05:23 PM

OK, still no dice. I switched the audio output to HDMI being the default and all looked good but even direct to the TV I got nothing.

I'll call Dell tomorrow.

gchappel 10-20-2008 05:29 PM

Please let us know the outcome of this. I am looking into getting a laptop and it ahs to be able to do hdmi output- sound and video.
Thanks
Gary

KFC911 10-21-2008 03:55 AM

Do you have another setup where you can verify the HDMI cable is OK?

lendaddy 10-21-2008 04:30 AM

Quote:

Originally Posted by KC911 (Post 4251201)
Do you have another setup where you can verify the HDMI cable is OK?

I do, It was working fine from my DVD player when removed.

rick-l 10-21-2008 05:50 AM

On my samsung tv I had to change the sound mode to PCM(?? I'm not by the tv).


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