This August I purchased an Asrock Core 100HT-BD mini PC for use as an HTPC in combination with my 37” LG LCD television set, and also a stereo amplifier. The Asrock is connected to the LG TV via HDMI. Surround sound is not used.

I installed both Ubuntu 10.04 and Windows 7 Ultimate in dual-boot. The Windows installation works flawlessly but in running Ubuntu I have been unable to produce sound on my TV using the HDMI connection. The analog stereo output works well.

Following advice in the Ubuntu documentation I have tried to modify the file “/etc/modprobe.d/alsa-base.conf” in adding a line at the end of the file: “options snd-hda-intel model=xxx” where “xxx” needs to be set in accordance with the HDMI codec, in my case “Intel G45 DEVIBX”. Various models were tried but in vain.

Can anyone put me in the right direction to solve the audio problem, please?

See:
http://www.linuxquestions.org/questi...2/#post4032980

Tried following the advice contained in this thread but it did not work for me. Adding the line “options snd-had-intel probe_mask=0xfff2” to “alsa-base.conf” removed all audio hardware support!

The command “aplay –l” gave me the following output:

The command “lspci –v” gave the following audio-related output:

I am at a loss on what to do next. It seems to me that my audio device is not supported by Ubuntu 10.04. Maybe the best way forward is to move to the latest Ubuntu release, but I favored Ubuntu 10.04 for its long term support!

Check alsamixer and make sure all things are unmuted.

Also make sure to tell the program you are using to play audio to send audio to the HDMI audio.

Make sure the TV options are set to play HDMI audio.

Did all that earlier, TexMex! Still no HDMI audio...