HDMI sound via ATI graphics card: Difference between revisions

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[[Category:201307]]
[[Category:201307]]


The HDMI sound device might not be detected automatically when booting the computer without the television connected. I hope this instruction will help you to make sure the drivers are always loaded.
== Quick repair ==


The easiest way:
* https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1001842


# Turn TV on
The HDMI sound device is disabled when the television is turned off.
# Reboot
 
Workaround 1:
 
<syntaxhighlight lang=bash>
xrandr -display :0 --output DFP2 --off
xrandr -display :0 --output DFP2 --auto
</syntaxhighlight>
 
Workaround 2:
 
# Go to terminal CTRL+SHIFT+F1
# Back to Unity CTRL+SHIFT+F7 / 8


Open ''sound settings'', you should see an HDMI Audio device here:
Open ''sound settings'', you should see an HDMI Audio device here:
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[[File:SoundSettings.png|600px|link=]]
[[File:SoundSettings.png|600px|link=]]
</blockquote>
</blockquote>
== Testing HDMI audio device ==


First find your HDMI sound device, in this case '''card 1''', '''device 3''':
First find your HDMI sound device, in this case '''card 1''', '''device 3''':
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</blockquote>
</blockquote>


Modify the following file to force-load the driver:
The following file loads the devices:
 
* http://forums.opensuse.org/english/get-technical-help-here/multimedia/472550-problems-sound-hdmi-no-pulse-pavucontrol-2.html
 
<syntaxhighlight lang=bash>
sudo gedit /etc/pulse/default.pa
</syntaxhighlight>
 
Insert these lines after ''module-alsa-sink'', use option 1,3 for card 1 and device 3:


<blockquote>
<blockquote>
<syntaxhighlight lang=bash>
/etc/pulse/default.pa
...
#load-module module-alsa-sink
#wjv 20130701 force load HDMI sound driver card 1, device 3:
load-module module-alsa-sink device=hw:1,3
#load-module module-combine sink_name=combined
#set-default-sink combined
...
</syntaxhighlight>
</blockquote>
</blockquote>
Reboot your system.


Test with ''aplay'' or with ''speaker-test'' (card 1, device 3):
Test with ''aplay'' or with ''speaker-test'' (card 1, device 3):

Revision as of 08:49, 1 July 2013


Quick repair

The HDMI sound device is disabled when the television is turned off.

Workaround 1: 

xrandr -display :0 --output DFP2 --off
xrandr -display :0 --output DFP2 --auto

Workaround 2:

  1. Go to terminal CTRL+SHIFT+F1
  2. Back to Unity CTRL+SHIFT+F7 / 8

Open sound settings, you should see an HDMI Audio device here:

Testing HDMI audio device

First find your HDMI sound device, in this case card 1, device 3: 

aplay -l
**** List of PLAYBACK Hardware Devices ****
...
card 1: Generic [HD-Audio Generic], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

The following file loads the devices:

/etc/pulse/default.pa

Test with aplay or with speaker-test (card 1, device 3): 

aplay -D plughw:1,3 ~/Scripts/other/alarm.wav
speaker-test -c 2 -r 48000 -D hw:1,3

Make sure the card is not muted: 

sudo apt-get install gnome-alsamixer
alsamixer
  • F6 to select the device
  • M to mute/unmute
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