Question about LG 42LG50 42 in. LCD HDTV

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DVI-->HDMI cable causes tv speakers to hiss and pop

I'm trying to connect my HTPC to my 42LG50 with a DVI to HDMI cable. I have a minijack cable carrying the audio.

When I have the video cable connected, the tv's speakers hiss and pop. The volume control and mute button do not do anything. When I switch to the DVD player on a component input, the sound works normally.

I tried connecting my iPod to the audio in, just to make sure, but that sound did not come out of the speakers, just the hissing.

I connected my macbook to the tv using the same cables and it works fine.

I'm going to try upgrading the video driver to the very latest, but I'm not sure that'll do anything.

My HTPC is running SuSE Linux 11, and has an Nvidia graphics card.

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Check the tv's setup menu to see if you can reassign the audio for that input to analog only

Posted on Aug 23, 2009

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DVi to HDMI. ? hmmmmm

I recon you spend £49.99 and get a DVI & Audio to HDMI Converter. This will resolve the issue

Posted on Dec 25, 2008

  • edmeades Jun 02, 2011

    It's an issue with the Nvidia Linux driver. I'd rather not spend 50 of any currency unit when I can just mute the TV's speakers.

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Hi Jatinder Kumar ,
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Here is my (apparent) observation and solution:
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I don't know if this will solve other people's problems, but I hope it at least provides some clues. I wonder if this is a fundamental circuit design flaw on the part of Panasonic, rather than a "bad batch of parts" problem.

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