[Linux-aus] Disabling HDMI sound

[Patrick Elliott-Brennan]

Hi all again.

First, thanks Josh for your suggestion.

Sridhar suggested checking dmesg, which I found:

[    4.054115] snd_hda_intel 0000:01:00.1: Handle VGA-switcheroo audio client
[    4.054117] snd_hda_intel 0000:01:00.1: Force to non-snoop mode

Then looking in syslog I found:

Nov 16 20:41:04 patrick-desktop kernel: [    4.109628] snd_hda_intel
0000:00:1f.3: failed to add i915_bpo component master (-19)

So, doing a Google

I found:

http://ubuntuforums.org/showthread.php?t=2293912


Which lead to:
https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS

Which suggested:

sudo apt-get install dkms

followed by a visit to:

https://code.launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily/+packages


Which is by the Ubuntu Audio Development Team

Packages in “ALSA daily build snapshots”

Downloading
oem-audio-hda-daily-lts-vivid-dkms - 0.201509251531~ubuntu14.04.1.deb

I then installed the .deb and rebooted

Et voilà!

Sound out of the onboard audio.

Nice.

Had to fiddle around with the PulseAudio settings and master controls
to make everything use the onboard audio but there we are.

Thought I'd post this in case anyone else experienced the same problem :)

Regards,

Patrick