HDMI sound via ATI graphics card: Difference between revisions

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Workaround 1:
Workaround 1:
# Go to terminal CTRL+SHIFT+F1
# Back to Unity CTRL+SHIFT+F7 / 8
Workaround 2:


<syntaxhighlight lang=bash>
<syntaxhighlight lang=bash>
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xrandr -display :0 --output DFP2 --auto
xrandr -display :0 --output DFP2 --auto
</syntaxhighlight>
</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:

Revision as of 08:52, 1 July 2013


The ATI graphics card HDMI sound device is disabled when the television is turned off

Bug report:

Workaround 1:

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

Workaround 2: 

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

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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