No sound via HDMI output when connecting laptop to TV

Anonymous
2010-08-07T09:52:34+00:00

Original title: HDMI Laptop to TV - No Sound

Up until a few weeks ago it worked well:  I simply connected the HDMI cable between my laptop and TV and got both the audio and video on the TV (After selecting the right AV channel on the TV).  Now I only get the video.

I have looked through other questions on this forum but have not found anything that works.  I am reluctant to change too much, as it worked before.

In my "Playback Devices" I see two devices: "Speakers" (Default) and "SPDIF Interface".   

Laptop: Packard Bell Easy Note TJ65 Pentium Dual-Core CPU

Windows 7 Version 6.1 (Build 7600)

TV: Panasonic Plasma TX-PS42S10B (HD Ready)

Any ideas, anybody?  I feel that as I have made very few changes, the fix must be simple.  I haven't tried a different cable yet, but I'm pretty sure it's OK.

Windows for home | Previous Windows versions | Music, photos, and video

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Anonymous
2010-08-15T00:01:17+00:00

BINGO!!

(So I had to go on to JustAnswers.com & pay £28, but I got the answer straight away ... wish I had gone earlier!)

Happy to share, though, for anyone struggling with this annoying problem...

I went on to Device Manager (Start Button > right click on Computer and selectManage) and uninstalled the device calledIntel(R) High Definition Audio HDMI.  Restarted the computer.  Connected TV with HDMI cable.  Right clicked on the little speaker symbol & slected Playback Devices.  Panasonic TV shows as a device.  Right clicked on it & set as default.  I got my sound back & everything works fine. 

It seems the driver had been updated somewhere along the line and was no longer compatible.  Following this process makes the computer put back its own driver.  All this time I was looking for a newer driver, and what it wanted was the old one!

For the record, the device in Device Manager is now called High Definition Audio Device. No mention of HDMI!

By the way, if you right click on the desktop you get a wizard to set up the TV interface.

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  1. Anonymous
    2016-02-14T00:06:17+00:00

    Same thing here. Actually, everything was working fine while W7 were on my Acer TravelMate 5730 - All U have to do is click HDMI cable on both ends. Go to Playback tab of Sound window in CP. Make it default, to hear the sound on your LG TV. I even found some little sw that does it all automatically for you.

    But everything went wrong after installing W10. Now, I'm watching things in Kodi through Acer's little speakers. And the situation in Sound part of Control Panel is like this:

    NVIDIA HDMI Outpu

    NVIDIA High Definition Audio

    Not plugged in    (which is not true - HDMI proprerly plugged in on both sides - monitor picture on LG TV proves it...it's just that there's no sound).  It used to be like with you gvolos - green bars used to jump indicating there must be sound somewhere there. Though not.

    Now...even that has disapeared (great loss though!).

    Well...this "Not pluged in" expression is the most interesting one..

    Thought it might has to do something with NVIDIA....picked around the NVIDIA installed centre. But nothing to configure due sound.

    There's just on thing left to try - the Gebril thing. So....let's do it before I completelly fell asleep (far too late to waste time on thins now). My last try.

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  2. Anonymous
    2016-02-12T01:53:02+00:00

    This works for me.  Acer laptop on windows 10.

    HDMI SOUND AND PICTURE

    • Go to start
    • Right click on control panel then open
    • Right click on sound then open
    • Under play back tab, Right click LCD and then show disabled devices
    • Set LCD TV as default

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  3. Anonymous
    2015-05-16T16:26:01+00:00

    Thanks for following up with helpful information. One other thing I learned after I posted my initial inquiry is that, for my particular setup, the order in which I do things matters. So I recall going through various configuration settings in Windows Control Panel to see if there was a configuration I could set that might fix this; however, in the end, I believe what fixed it was making sure the HDMI cable was plugged in before I started playing the video on my computer (that would then show up on the TV with sound from the TV speakers).

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