No Sound via HDMI

[lidex]

Since you know how to unmute now try using that config file again. Use sound preferences to select the correct outputs and gnome-alsamixer to enable spdif/digital.

Gnome-alsamixer
Using Alt+F2 run dialog

 gnome-alsamixer

Use 'Edit -> Sound Card Properties' menu to enable elements.
Soundcard tab to select / adjust levels.
To install:

sudo apt-get install gnome-alsamixer

[jda8818]

dear lidex,
please try to control your sarcasm,

I'm certainly trying to control mine.

thank you again

JA

[lidex]

dear lidex,
please try to control your sarcasm,

I'm certainly trying to control mine.

thank you again

JA

I'm not sure what you mean but no slight is intended, however it may read This link may be of service:
http://ubuntuforums.org/showthread.php?t=1466111

[jda8818]

OK, well then, what is gnome-alsamixer? so far it seems that ALSA runs on top the hardware, and Pluseaudio runs on top of ALSA and acts as a server to whomever clients (maybe not flash).

where in this mix does gnome-alsamixer live? what does it do?

as always, lidex,

your dear friend,

JA

[lidex]

It's a gui frontend for alsamixer. It exposes the available elements for your soundcards in a much more accessible way than the terminal alsamixer. Makes it a lot easier to enable/mute/unmute etc. With the digital elements they have to be manually unmuted.

[jda8818]

to let you know, i resent your 'roll your eyes (sarcastic)' smiley in your reply

as always

your dear friend

JA

[jda8818]

Sound via HDMI works! In fact, everything seems to be working!

To sum up (chronologically):

Zotac H55ITX (BIOS 08.0.15 3/2/2010) i3-530
New 10.04 LTS Install plus all updates per prompts from Update Manager.
VGA & analog sound OK, but no HDMI sound.
Obtained and ran ALSA Upgrade Script AlsaUpgrade-1.0.23-2.
HDMI system sounds & Rhythmbox sound OK, but no sound in Firefox.
Created /etc/asound.conf file consisting of the code:

pcm.pulse {
type pulse
}
ctl.pulse {
type pulse
}
pcm.!default {
type pulse
}
ctl.!default {
type pulse
}

Success

Notes:
When the original install was finished I was prompted to reboot. The machine did not shut down cleanly & I was forced to power down after a string of I/O errors. Subsequent reboots OK.

After the AlsaUpgrade script the machine hung on first reboot - but subsequent reboots OK.

First reboot after /etc/asound.conf file creation the sound was muted for some reason. Which admittedly I didn't recognize. I may have been alble to simply unmute at that point, but I'll never know. I removed the file, then recreated it, rebooted, and everything seems to be working properly, including flash in Firefox. The first reboot after the /etc/asound.conf file was recreated did not result in muted sound. Subsequent reboots have all been normal (boring).

thanks to everyone for their help!

JA

[Hopey]

jda8818 I've been figuring this out and finally got it working thanks to your asound.conf file. Thank you!

[agarciamog]

Thank you.

I spent many hours trying all sorts of things. What ultimately worked on my Linux Mint Debian box was creating the /etc/asound.conf file.



Additional Tags: flash hdmi sound ubuntu effects pulseaudio alsa asound.conf