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I need some assistance, I have 2 laptops, a Toshiba and a DELL XPS M1330, the problem is using my DELL laptop, when I use the HDMI cable to use the TV as monitor the display works fine however the sound only work in the laptop speakers I can't use the TV speakers.

When I go to "Sound" settings to select the HDMI in the "Play sound through", I can't select the HDMI because it never show up. I can only see, "headphones and speakers".

So as a summary the, display works but the sound it doesn't in the TV. Any ideas?

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3 Answers 3

It seems that your laptop has dual graphics which may need you to install the Nvidia binary driver and Bumblebee from this guide: https://wiki.ubuntu.com/Bumblebee

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thanks for the help, I tried the steps mentioned in the link however the issue remains. –  Oso May 26 at 16:07

Try the following:
Reinstall Alsa and Pulse Audio

Open an Terminal (CTRL+ATL+T).

Try to reinstall pulse audio and Alsa, open terminal and enter the following commands:

Purge Alsa and Pulse audio using the command:

sudo apt-get remove --purge alsa-base pulseaudio

Now install again Alsa and Pulse Audio:

sudo apt-get install alsa-base pulseaudio

Then, reload Alsa:

sudo alsa force-reload

Done, if it is not working try the following:

 sudo add-apt-repository ppa:ubuntu-audio-dev
 sudo apt-get update
 sudo apt-get dist-upgrade

Pleas note, that driver is NOT updated for Ubuntu 14.04 yet.

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I tried your solution but increased problems than solving it. –  Fooo Oct 3 at 6:42

To get HDMI audio working on Ubuntu 14.04 x64 bit, please download the deb file from this link

https://code.launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily/+files/oem-audio-hda-daily-dkms_0.201408292114%7Eubuntu14.04.1_all.deb and install it via cli or software centre.

  1. For older packages go to page: https://code.launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily/+packages
  2. Then force reload alsa using the following command : sudo alsa force-reload
  3. After that, select HDMI from the sound menu as shown below (for me this option appeared only after installing the above mentioned package)

enter image description here

Please note HDMI audio function tested on Intel graphics only on a Lenovo Flex2 14 laptop

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