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I am trying to get video AND SOUND on my TV from the Laptop. I have the HDMI/DVI connection running from laptop to TV. I also have the audio cable running from the laptop headphones port to the TV Red/white ports. I get video but no sound. I have tried everything. When I go into sound settings on the laptop, as suggested, I do not see any sound option resembling HDMI audio or anything like that. All I can choose is in the playback devices list is "SPDIF interface" or "speakers"--I set the SPDIF interface as the default playback option---still no good. No audio. Tried installing or updating new audio drivers...no change. No sound. Just video. Any ideas?

Thanks...

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If you plug a set of speakers/headphones into the audio jack on the notebook, do they work as expected when viewing the video? If so, then you probably need to set the audio source on the TV itself. –  Ƭᴇcʜιᴇ007 Sep 3 '13 at 15:56
    
I tried headphones in the audio jack on the laptop and still no audio. Video is fine. –  Doug Sep 3 '13 at 16:55
    
Does the video play the audio at ALL on the notebook (like with HDMI/TV taken out of the equation)? Are you sure you're not just missing the audio codec for that video? Do OS system sounds play? –  Ƭᴇcʜιᴇ007 Sep 3 '13 at 17:00
    
Yes all movies, audio and videos in any format play fine on the laptop when taking the tv/hdmi out of the equation. The red flag for me is that I don't see any HDMI audio option in the sound preferences. I only see cmpter speakers and SPDIF to choose from in playback devices... but maybe that's all that should display...no idea. –  Doug Sep 3 '13 at 17:41
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The Lenovo T400 does not have a DVI or HDMI output; there's only a VGA port and headphones jack. Do you have the correct model number? –  sawdust Sep 3 '13 at 18:55

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