No sound in 15.04 over HDMI on NUC

Asked by NitzanMS on 2015-05-27

After upgrading to 15.04, and maybe another update round, I can't hear any sound over HDMI. A sound device seems to exist:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: ALC283 Analog [ALC283 Analog]
    Subdevices: 1/1
    Subdevice #0: subdevice #0
But when I try to play something (with aplay) there's nothing but silence (not even an error). I already looked at volume controls and nothing is muted or low-volume as far as I can see.

PulseAudio Volume Control doesn't seem to recognize any output device existing at all except Built-In Audio Analog Stereo, and the sound settings don't even recognize that.

Things I've already tried:

- An update via apt-get didn't solve this.
- pavucontrol didn't display an HDMI device.
- aplay lists a device but doesn't seem to play anything.
- deleting files in ~/.pulse dirs didn't help.
- restarting alsa and pulseaudio didn't help either.

Here is the also-info.sh report from my computer: http://www.alsa-project.org/db/?f=4750eeb7df3a6ffcb40d9debd7c001556a8d93fb

Question information

Language:
English Edit question
Status:
Open
For:
Ubuntu alsa-driver Edit question
Assignee:
No assignee Edit question
Last query:
2015-05-27
Last reply:
Ramon Lewis (ramonl-b) said : #1

It is really weird but my problem disappeared with the update happened tonight.
Now have HDMI, Optical and Analogue sound controls.

Maybe if you do the latest update.

Cheers
Ramon

Thanks to laugeo for poiting out this is a kernel bug in 3.19.0 : http://askubuntu.com/questions/629676/sound-isnt-coming-through-hdmi-with-a-latest-software-update

Ramon: I'm guessing you're running a more recent kernel than 3.19.0

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