Hi to all.
I have a Samsung LCD TV (LE40S8 series) hooked up with devices such as DVD player, VHS player, TV Terrestial decoder and pc.
The problem is that I am not getting any sound from the TV when using my PC (graphic card being Nvidia Geforce 8500GT).

I have connected my PC to this TV via DVI (from PC video Card) to HDMI2. Obviously there was no sound. So I removed the pc speaker jack and inserted another wire having a jack on one side (same as pc speaker’s), and 2 phone jacks on the other end (one red and other white). I inserted the 2 jacks (red and white) at the back of the LCD TV next to the HDMI2 socket (this is marked as Audio DVI In [HDMI2]. Still I am not getting any sound. How come? Is there other setting which I should do?
Anybodies help will be greatly apprecieated.
Thanks

It's quite possible the TV is expecting sound to be from the HDMI socket as default. It is very likely that somewhere buried deep in the menus of the telly is an option to switch the audio source associated with HDMI2 between digital and analogue.

If there is set it to Analogue and that should activate the phono sockets you are using.

Of course the other possibility is that the lead you are using is broken. Though if you have a stereo system with and AUX in you can verify that.

And if all else fails retreive the manual from the bin and read it (perish the thought )

thanks for the prompt reply.
As regards to the wire, it is not broken since i changed the wire and still had no sound. I searched the TV menu to find any audio settings but did not find any option to switch audio sourse. I will look through it again and even the manual maybe something crops up.
Thanks again for your help. Will get back after checking.
Regards.

It could be that your TV accepts sound via the HDMI socket. If that's the case, you might need to enable (set as default) the digital sound processor on your computer's video card, so that the signal will be present on the HDMI plug. The TV should, then, decode it.

But I can't find a reference to it in the on-line manual for the TV, but I might be looking in the wrong book.

Are you using Vista? If so, right click on the speaker icon, select playback devices, set default as the digital output device (HDMI) - that's how it's done with a Radeon card. Might be very similar with Nvidia cards. Oh, and XP.

Unfortunately, it sounds as if your in a Catch-22. As far as I'm aware, there's no way to cross thread an analogue audio signal into an HDMI video as HDMI slot will be expecting the sound as well. The 3.5mm jack won't work as that will only work through the PC option on the TV

The only option I can see as viable is to link the PC using DVI-DVI, as you can then use 3.5mm jack to 3.5mm jack for the audio.

As far as I know my Samsung Tv does not have a dvi. Shall I use a converter from HDMI to DVI? and input it in HDMI2 just the same.

I forgot to mention my operating system is XP

Sorry about my short messages but I have so many question marks.

What about this thing: (set as default) the digital sound processor on your computer's video card. Where do i find it?
Thanks

This wont work either as, for the 3.5mm jack to 3.5mm jack to work, the TV has to have both video and audio signal from the PC input on the back i.e. VGA or DVI


This won't make any difference as DVI cannot carry any sound signals. Physically impossible I'm afraid.

The only thing I can think of is to get a set of good PC speakers and run the sound through them, and use the DVI-HDMI cable you are currently using to keep sending video signal throught the HDMI port on the TV. Not an ideal situation but, probably the easist method

Tried it out again, but still no picture. I think I will use pc speakers as you said.
If I have to use DVI to VGA and jack to jack sound would there be a great difference in the video picture then DVI to HDMI?

Not true - DVI-I can carry audio. So yes, a DVI-I to HDMI converter will work. Indeed Radeon cards come with such a converter.

You should simply connect your DVI-I output to your TVs HDMI input using a converter cable (or converter and hdmi cable) and, as advised earlier, enable the digital audio device on the video card. It's the same for XP as it is for Vista.

You can, also, connect DVI to VGA - as DVI carries both analogue and digital video.


I'll also look up the Nvidia card and will post back shortly.

I'm confused - the GeForce 8500GT has a HDMI output! There will be audio on that. You have to enable it, sure, so what am I missing here?

It seems, though, that this older card has to get it's audio from the motherboard or sound card. You need to connect the two internally. Otherwise bin it and get a better video card.

Why do you want to use the monitor's speakers anyway?

Anyway, see the other forum. that FJ-F fellow seems pretty clued up.

I don't know where you got your info from, but no DVI cable carries sound. It was designed to be a digital version of VGA which was known as DVI-D. This, however wasn't analogue compatible so they made 2 more cables, DVI-A(analogue), and DVI-I, which integrated both analogue and digital


A VGA cable will do 720p & 1080p, so as far as I'm aware, there shouldn't be a difference in picture quality.

Wrong - some manufacturers DO make audio available on DVI-I. I have a Radeon 3650 and it definitely includes audio on the DVI socket - I can hear it now. See quote in previous reply.

There is a special converter DVI-HDMI adapter plugged into the DVI socket and an hdmi cable to my TV.

It is called HDMI over DVI - see specifications [click]

The link above doesn't work, unfortunately, it is blocked by DS. Search for the Radeon 3650 on the Novatech site. Then click on the specifications tab.

It is the only way Radeon or Nvidia could comply with HDMI specifications without adding a separate HDMI socket on the back of the card. They are primarily aimed at computer monitors which typically only support VGA or DVI - but they recognise that in order to support HD Video, along with HDCP they must provide an output that includes sound, so ATI, at least, include a DVI-HDMI converter which, of course, supports audio.

Now, I understand that Nvidia do support this, but they don't have sound chips on their cards, so in order to fully comply they include SPDIF input posts so that computer builders can connect the soundcard to the video card. If this isn't done, then there is no sound to convey.

To that extent, Radeon cards are superior in specification to the equivalent performing Nvidia graphics cards.

So finally I got the solution. DVI-I as mentioned previously those support audio. To work one must connect the S/PDIF from the motherboard to the S/PDIF on the graphic card. This will give digital audio. On opening my pc I found that afterall my graphic card ( Nvidia Geforce 8500GT)does not have this connection. So I had to connect my audio direct to the surround system via the speaker jacks.

Thanks to all for your help.

Does your surround sound system support coax or optical SPDIF?

If so, does your computer have an external coax or optical connection?

If not, and it does have an internal two pin SPDIF jumper type posts, then you can do as I have had to, which is to make up a bracket with a single coax socket on it.

In fact, it was one of our friends on this forum that made it up for me. I won't mention who it was, as I don't want him to think that I can bandy his name around willy-nilly.

I think my surround system is quiet primitive. It has all type of connections, except coax or optical SPDIF. I had to connect them to the phono jacks (I think they are called RCA?). Hope to buy a better one very soon.

I think my surround system is quite primitive. It has all types of connections except the one I need - coax or optical SPDIF. So I had to do with the red and white phono jacks. I have in mind to buy a new one very soon.