I have connected my Gateway laptop to my TV with an HDMI cord a million times, and I'm aware that you have to go into sound settings and select HDMI Audio. However, since upgrading to 13.04 there is no HDMI Audio option in the sound settings. I'm assuming I need to install something, but I'm not sure what.

Viewing the other questions on the same problem directed me here: https://code.launchpad.net/~ubuntu-audio-dev/+archive/alsa-daily/+packages

But I have no idea what to do from there.

  1. Run this command in a terminal:

    sudo -H gedit /etc/default/grub
  2. Edit this line, from



  3. Run:

    sudo update-grub
  4. Restart the system.


That is what is called a ppa. It is just a place you can add to apt so it gets updated also. What you need to do is add the ppa to your system and update it... Here is what I did when 13.04 came out and it worked for my HDMI sound issue.

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

Go to https://code.launchpad.net/~ubuntu-audio-dev/+archive/alsa-daily/+packages and install the latest oem-audio-hda-daily-lts-raring-dkms - ** ~precise1 deb and restart. If HDMI output is not the default selected, select it. Thats it.

I did not find the need to do any of the above suggestions.

I did the same for Ubuntu 13.04 connecting my CPU (Nvidia 450) through HDMI cable to Toshiba 19inch TV.


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