Trouble configuring HDMI sound out

English Hardware
1

I have tried to configure HDMI sound out according to the instructions in the following pages, but with no success:

  1. I ran “pavucontrol”, and it shows “GM204 High Definition Audio Controller Digital Surround 5.1 (HDMI)”.

The “Port” option is shown as “HDMI / DisplayPort (unplugged)” and I cannot get sound out. HDMI is not unplugged, however, as I am viewing my laptop screen duplicated on my HD TV screen via the HDMI connection (through a Yamaha AX-V575 receiver).

  1. As that instruction suggests, I have run: “/usr/sbin-alsa-info.sh” as a normal user.
    However, I get the response “bash: /usr/sbin-alsa-info.sh: No such file or directory”.
    I also ran this with “sudo” and got a similar result, so it appears that this is not installed.
  • https://en.opensuse.org/SDB:Intel-HDA_sound_problems
    [LIST=1]
  • I ran “sudo head -n 1 /proc/asound/card0/codec*” and got the following:
    Codec: Realtek ALC892
  • Then I ran “sudo vi /usr/src/linux-4.4.36-8/Documentation/sound/alsa/ALSA-Configuration.txt”,
    and I searched for “ALC892”, but got “E486: Pattern not found: ALC892”.

[/LIST]

Any suggestions?

Thanks for any help.

2

Sorry if you have already tried this. Have you clicked on the volume control and checked that the HDMI volume is not muted?

3

Yes, I have checked the volume and whether it is muted. The laptop speakers work OK, and I have also set up Bluetooth access to a Bose Mini II SoundLink unit, but I have not been able to get the HDMI output to my 5.1 home theater system speakers working.

4

Sorry to be a bearer of bad news but, when I Googled ‘GM204 High Definition Audio Controller Digital Surround’, it came up with several examples of other people who have had problems with this device and, as far as I can see, no solutions.

5

Using wrong path

Should be /usr/sbin/alsa-info.sh

6

To the op how many HDMI port do you have?

7

OK. I should have caught that. I have linked to the output here:

http://allan-johnstone.ca/alsa-info.txt.3DXtWg4DIE

8

Only 1 HDMI port.

9

Hi,
I experienced this problem on an LG TV with 3 HDMI ports.
Only one out of three ports was working. I tried to match your

/usr/sbin/alsa-info.sh

and seems to me that it is the same. The /usr/sbin/alsa/alsa-info.sh
is too long for me to dissect because I am still recovering from retinal reattachment
so I am having trouble reading properly. Maybe wait for oldcpu to see your post for
proper advice.

On a side you might try to install the xfce mixer it is an easy to use app.
Try to check the IEC958 (HDA NVidia (Alsa mixer) if it is enabled.

10

OK, I may have been mistaken about that. This seems to have fixed the problem. Thanks!