Question about LG 42PX4DV 42 in. EDTV-Ready Plasma Television

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No audio out on hdmi with desktop but when i plug in the headphone jack from computer to audio in on my LG LCD TV there is still no sound, and if i plug the headphone from desktop to surround sound, i have sound. so the problem is not my desktop, but the tv. audio in works when desktop is connected through VGA.

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Chances are your desktop doesn't support audio through HDMI. Try to find a spec sheet for the unit you have, an upgrade may be possible

Posted on May 27, 2010

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Hook up a computer to it. The tv could have an hdmi connector or monitor connector (check the back of the television to see which type of connectors you have available) so just plug a cable in from your pc to the tv.

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How do I get the sound through my LG M197WD Flat screen monitor when using it with my PC? Sound is fine when using it as a TV!


What video cable are you using between the TV and the computer? If you are using a VGA, DVI or DVI-HDMI cable, you need to connect a 3.5 mm audio patch cord between the computer's audio out and the PC audio in on the TV. The audio out on the computer will be the speaker (green) port on the back of a desktop or the headphone jack. (Make sure that this jack works by connecting a different set of computer headphones or speakers to the computer.) The audio in jack on the TV is above the RGB input; it's just to the left of the digital audio out.

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If another set of speakers doesn't work, you need to check the drivers for your computer. In the Device Manager (click Start > Control Panel > Hardware and Sound > Device Manager), scroll down to the section for Sound controllers and expand it. Then check for updates for the audio driver. If necessary, uninstall the driver (by right clicking on the audio driver). Then shut down the computer and restart it.

The manual for the M197WD is available from LG here: http://www.lg.com/uk/it-products/monitors/LG-tv-monitor-M197WD.jsp . Click on the support tab and the link is on the right side of the page.

My directions are for Windows 7; it's slightly different for other versions of Windows.

I hope this helps. Please post a comment with the video connection that you are using if you need additional assistance.

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The headphone jack is useful if you are using a video source like a Blu-ray player with an HDMI cable. Then you can listen to the audio.

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Can 2.1 pc speakers work thru headphone jacks?


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The monitor does not have a way to convert the sound from HDMI to Headphone.

There could be a converter that might convert the sound signal from HDMI to headphone (but I'm not sure).

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LG 42PX4DV - HDMI Audio / PC Audio IN problem


I found the fix. Had the same problem.
I right clicked on the sound speaker icon in the bottom right of Windows 7.
Chose Playback Devices.
Once this window opens, then make sure you are on the Playback tab.
Scroll down until you see the HDMI Device. (Mine was hidden at the bottom of the list.)
Then choose "set as default".
The sound will begin playing on the TV with only the HDMI connected......no need for an extra audio cable.

Sep 26, 2007 | LG 42PX4DV 42 in. EDTV-Ready Plasma...

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