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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [KBL] intel NUC6CAYH no HDMI audio output"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101583#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [KBL] intel NUC6CAYH no HDMI audio output"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101583">bug 101583</a>
from <span class="vcard"><a class="email" href="mailto:admin@kuta.bid" title="Kuta <admin@kuta.bid>"> <span class="fn">Kuta</span></a>
</span></b>
<pre>Ok, short answer : It works - sorta...ish
Longer answer : Its very, VERY flakey. Breathe on it & sound stops working
again. Totem kills the sound reliably so uninstall it & use VLC.
I've tried to document the process of getting sound via HDMI on Ubuntu 16.10
clearly for the next person.
Note 1 : The package 'oem-audio-hda-daily-dkms' does not exist in the Graphics
drivers PPA.
Note 2 : Ubuntu 16.10 is the most recent being packaged for by the ALSA PPA
guys.
Note 3 : Keep your resolution no higher than 1920x1080 or no sound via HDMI
again..
Note 4 : When sound via inevitably stops, Log out & back in. Check sound mixer
settings & return them to HDMI/Display port/Stereo etc again.
Follow these steps to resolve the issue:
1. Make sure that your system is up-to-date using the Update Manager.
In a Terminal window, run the following:
sudo apt-get update && sudo apt-get upgrade
Reboot the system.
2. Add the following groups to your account:
audio, pulse, pulse-access, video, voice
Install the better user/groups gui to manage this:
sudo apt-get install gnome-system-tools
3. Add the Graphics Drivers PPA
[ Oibaf : Updated and Optimized Open Graphics Drivers repo ]
[ <a href="https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers">https://launchpad.net/~oibaf/+archive/ubuntu/graphics-drivers</a> ]
In a Terminal window, run the following:
sudo add-apt-repository ppa:oibaf/graphics-drivers
sudo apt-get update
Reboot the system.
4. Add the ALSA PPA (all versions of Ubuntu up to 16.10, 17.04 NOT supported)
[ ALSA daily build snapshots repo ]
[
<a href="https://code.launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily/+index">https://code.launchpad.net/~ubuntu-audio-dev/+archive/ubuntu/alsa-daily/+index</a>
]
In a Terminal window, run the following:
sudo add-apt-repository ppa:ubuntu-audio-dev/alsa-daily
sudo apt-get update && sudo apt-get install oem-audio-hda-daily-dkms
Reboot the system.
5. Make this directory if it does not exist under /etc/X11:
sudo mkdir xorg.conf.d
Create this new file:
sudo nano /etc/X11/xorg.conf.d/20-intel.conf
Paste this contecnt into the newly created file:
Section "Device"
Identifier "Intel Graphics"
Driver "intel"
# Option "SwapbuffersWait" "true"
Option "AccelMethod" "SNA"
# Option "AccelMethod" "UXA"
Option "TearFree" "true"
Option "DRI" "3"
EndSection
To revert to standard Ubuntu graphics drivers type the following in a prompt
shell:
$ sudo apt-get install ppa-purge
$ sudo ppa-purge ppa:oibaf/graphics-drivers
To revert to standard Ubuntu ALSA drivers type the following in a prompt shell:
$ sudo apt-get install ppa-purge
$ sudo ppa-purge ppa:ubuntu-audio-dev</pre>
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