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
    2010-08-09T17:35:28+00:00

    Guys:

    The 's' was a typo.  Sorry!  There was definitely only ONE lead.  And I definitely had audio.  100% sure.  As I said at the start of this thread it wasreally simple.  Turn on the TV.  Set it to HDMI.  Plug in the HDMI lead at both ends, and both the video & audio appeared automatically on the TV.  This is the way I play my i-Tunes. 

    Carlos, following your earlier advice, in Device Manager I found "Intel(R) High definition Audio HDMI" (a good sign?).  No question marks or anything. It says it is 'working properly'.  I tried to update the driver, but it came back an said it was up to date.  Everything seems normal.  Any ideas?

    I guess reinstalling Windows 7 might do it, but I was hoping for something less radical and time consuming.

    Thanks for sticking with me!

    Kevin

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  2. Anonymous
    2010-08-09T15:26:38+00:00

    Just to add a little oil on to the fire .....

    Carlos:  It definitely did carry the audio through the HDMI until a few weeks ago.  (I can't see how your quote from the user guide says it doesn't, anyway!).  All I had to do was connect the leads!

    Gerbil : leads ? Full HDMI is ONE lead. How many were you reallyconnecting when everything worked  - one or two ?

    Cheers,

    Jerry

    The Spanish equivalent of adding a little oil to the fire is something like "adding firewood to the fire".

    :)

    Tks for the support.

    Carlos

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  3. Anonymous
    2010-08-09T14:17:25+00:00

    Just to add a little oil on to the fire .....

    Carlos:  It definitely did carry the audio through the HDMI until a few weeks ago.  (I can't see how your quote from the user guide says it doesn't, anyway!).  All I had to do was connect the leads!

    Gerbil : leads ? Full HDMI is ONE lead. How many were you reallyconnecting when everything worked  - one or two ?

    Cheers,

    Jerry

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  4. Anonymous
    2010-08-09T10:28:47+00:00

    Hi,

    One thing is the chipset and another is how the company that assembled your notebook implemented it.

    Regardless of that, If you are 100% sure of having had audio via HDMI, check Device Manager.

    In Sound and Video you should be able to see an HDMI audio something.

    If you only see one device, that one corresponds to your speakers and, probably, the spdif output.

    Is there any device not recognized in Device Manager (those with question marks or bangs)?

    If HDMI audio is there, you should see signs of it in Device Manager.

    If you don't, then it simply ain't there.

    :)

    Carlos

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