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No sound on tv when computor connected to it
4STIX
09-06-2014
Can anyone explain why I can't get any sound on my TV when tower unit connected

I bought a tower unit to watch I player etc via the internet on my tv, I've had to connect a dvi socket to hdmi which won't give me any sound, so bought audio jack lead and connected that but still no sound.

Any ideas please as it's driving me crazy.
grahamlthompson
09-06-2014
Originally Posted by 4STIX:
“Can anyone explain why I can't get any sound on my TV when tower unit connected

I bought a tower unit to watch I player etc via the internet on my tv, I've had to connect a dvi socket to hdmi which won't give me any sound, so bought audio jack lead and connected that but still no sound.

Any ideas please as it's driving me crazy.”

Assuming the DVI socket is at the PC end then your problem is likely that the TV will expect audio to be input via the hdmi socket. It's unlikely there's any way to tell the TV to get video from HDMI and audio from a different socket.

If the other way round there should a audio socket on the TV by the DVI socket (usually 3.5mm stereo socket).

Easiest way is to get a separate set of amplified PC speakers and place them by the TV.

There are ways of combining DVI Video and audio and outputting on HDMI. The converters won't be very cheap.
4STIX
09-06-2014
Thanks for the reply Graham, the dvi socket is at the pc end, so is there any chance of adding a hdmi port to the computor and thus negating the dvi port? If not then it looks like seperate speakers.
chrisjr
09-06-2014
Originally Posted by 4STIX:
“Thanks for the reply Graham, the dvi socket is at the pc end, so is there any chance of adding a hdmi port to the computor and thus negating the dvi port? If not then it looks like seperate speakers.”

What TV is it? Some (but by no means all) TVs have one HDMI input dedicated to use with PCs with a audio connector next to it. So it is vital to make sure the lead is plugged into the correct HDMI socket on the TV. It may also be necessary to select a "PC" input on the TV rather than "HDMI 1" or whatever even though it's the same socket.

Selecting PC will tell the TV to take Audio from the audio socket while HDMI 1 takes audio from the HDMI. But knowing what TV it is will help advise a/ whether it can be done and b/ what you need to plug where.

Adding HDMI to the computer will involve changing the graphics card. If the replacement card does not do audio over HDMI by itself then you will also need a digital connection to the sound card internally (usually).
grahamlthompson
09-06-2014
Originally Posted by 4STIX:
“Thanks for the reply Graham, the dvi socket is at the pc end, so is there any chance of adding a hdmi port to the computor and thus negating the dvi port? If not then it looks like seperate speakers.”

There's this device (Note No Win 8 drivers)

http://www.ebay.co.uk/itm/1080P-Lapt...-/320922155111

or

http://uk.startech.com/AV/USB-Video-...Audio~USB2HDMI

Or for your existing DVI and audio out

http://www.lindy.co.uk/audio-video-c...QjSrxcB-Lw_wcB
4STIX
09-06-2014
Originally Posted by chrisjr:
“What TV is it? Some (but by no means all) TVs have one HDMI input dedicated to use with PCs with a audio connector next to it. So it is vital to make sure the lead is plugged into the correct HDMI socket on the TV. It may also be necessary to select a "PC" input on the TV rather than "HDMI 1" or whatever even though it's the same socket.

Selecting PC will tell the TV to take Audio from the audio socket while HDMI 1 takes audio from the HDMI. But knowing what TV it is will help advise a/ whether it can be done and b/ what you need to plug where.

Adding HDMI to the computer will involve changing the graphics card. If the replacement card does not do audio over HDMI by itself then you will also need a digital connection to the sound card internally (usually).”


Hi Chris, the tv is an LG model with a pair of audio jacks at the back and 2 hdmi slots at the back, will try your suggestion of changing input settings to PC , if not its going out the window,> I'll also try Grahams suggestion so I might be a while>

Thanks to both of you btw, Im sure I'll be back
chrisjr
09-06-2014
Originally Posted by 4STIX:
“Hi Chris, the tv is an LG model with a pair of audio jacks at the back and 2 hdmi slots at the back, will try your suggestion of changing input settings to PC , if not its going out the window,> I'll also try Grahams suggestion so I might be a while>

Thanks to both of you btw, Im sure I'll be back”

What specific model? And what do you mean by Audio jacks? If you mean a pair of red and white phono sockets they may be associated with a different AV input and not for PC use.

It is more common for the PC Audio input to be a 3.5mm jack socket and it will be very close to the associated HDMI.
4STIX
09-06-2014
Originally Posted by chrisjr:
“What specific model? And what do you mean by Audio jacks? If you mean a pair of red and white phono sockets they may be associated with a different AV input and not for PC use.

It is more common for the PC Audio input to be a 3.5mm jack socket and it will be very close to the associated HDMI.”

Its a Lg 32cs460 and your correct its got the red and white audio but no 3.5mm hole ?
grahamlthompson
09-06-2014
Originally Posted by 4STIX:
“Its a Lg 32cs460 and your correct its got the red and white audio but no 3.5mm hole ?”

It's likely the only analogue audio inputs you have are on the scart socket(s) and on the combined component/composite rca phono sockets.
Nigel Goodwin
09-06-2014
It was VERY, VERY common for sets to have a 3.5mm audio in jack socket for one of the HDMI's, in order to allow audio from a DVI source (which doesn't have audio) - but I suspect it's getting left off many sets now, as DVI is long since dead.

Does your PC have VGA out as well?, and does the TV have VGA in? (which will have an audio input associated with it).

Just checked the LG instruction book, looks like it's sadly lacking anything that would help.

You could get an Android 'Dongle' or 'Box'. and use that to do iPLayer (and far more) via HDMI.
chrisjr
09-06-2014
Originally Posted by 4STIX:
“Its a Lg 32cs460 and your correct its got the red and white audio but no 3.5mm hole ?”

Having scanned the manual from the LG website I can't see any PC audio input on this model. The only audio inputs seem to be shared between the Composite and Component video inputs.

So looks like audio via HDMI is the only option.
grahamlthompson
09-06-2014
Originally Posted by chrisjr:
“Having scanned the manual from the LG website I can't see any PC audio input on this model. The only audio inputs seem to be shared between the Composite and Component video inputs.

So looks like audio via HDMI is the only option.”

Or a DVI to component converter.
4STIX
09-06-2014
Originally Posted by chrisjr:
“Having scanned the manual from the LG website I can't see any PC audio input on this model. The only audio inputs seem to be shared between the Composite and Component video inputs.

So looks like audio via HDMI is the only option.”

May be a good time for a stiff drink
Thanks for all the replies ,may be best option is a dongle thingy
chrisjr
09-06-2014
Originally Posted by 4STIX:
“May be a good time for a stiff drink
Thanks for all the replies ,may be best option is a dongle thingy ”

If it is a tower/desktop PC then presumably it has expansion slots that would take a graphics card, if not already in use. A cheap card with HDMI could be an option. And would be neater than a dongle.
4STIX
09-06-2014
Originally Posted by chrisjr:
“If it is a tower/desktop PC then presumably it has expansion slots that would take a graphics card, if not already in use. A cheap card with HDMI could be an option. And would be neater than a dongle.”

Nice one Chris I'll give that a go first ,,,,,yep its a dell tower unit
Nigel Goodwin
10-06-2014
Originally Posted by 4STIX:
“Nice one Chris I'll give that a go first ,,,,,yep its a dell tower unit”

Worth upgrading the video card then, I did mine a number of years back (to improve performance), and the card came with both VGA and HDMI (although I use VGA) - just looked round the back, it has DVI as well
d'@ve
10-06-2014
Originally Posted by Nigel Goodwin:
“Worth upgrading the video card then, I did mine a number of years back (to improve performance), and the card came with both VGA and HDMI (although I use VGA) - just looked round the back, it has DVI as well ”

Just to confirm (in view of your 'DVI is long since dead' comment earlier) that in the case of desktop PCs anyway, it is still common in 2014 to find new motherboards with a DVI-D, HDMI and D-sub socket. My 4 year old dedicated graphics card is the same, so there's still plenty of life in the old DVI dog yet!

It would be disappointing if manufacturers such as LG are leaving off TVs any provision for a separate audio input in order to save pennies, a good reason to avoid that TV brand (if true) IMO as there are millions of people running oldish pre-HDMI output computers out there (IIRC 40% still used Windows XP as of earlier this year and many will have a computer of similar vintage).
jcjeffe
10-06-2014
Nvidia Geforce 210 cost about £20 and do what you want. I have three used to connect PCs to give HDMI video & sound to my TV.
chrisjr
10-06-2014
Originally Posted by d'@ve:
“It would be disappointing if manufacturers such as LG are leaving off TVs any provision for a separate audio input in order to save pennies, a good reason to avoid that TV brand (if true) IMO as there are millions of people running oldish pre-HDMI output computers out there (IIRC 40% still used Windows XP as of earlier this year and many will have a computer of similar vintage).”

On my LG (42LN575) any of the HDMI inputs can be used with DVI sources. The audio is shared with the Composite/Component AV inputs however. Which could be a bit of a bummer if they are in use with another source.
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