suddenly no sound on Raspbian (Raspberry Pi 2)

[Emanuel Berg]

On my Raspberry Pi 2, I suddenly have no HDMI
sound and no headphone sound either save for
the hello_audio.bin test, which works for the
headphones but not the HDMI.

I have tried this:

test-sound () {
sudo modprobe snd_bcm2835
for output in 0..2; do
sudo amixer -c 0 cset numid=3 $output
sudo aplay /usr/share/sounds/alsa/Front_Center.wav
done
}

No sound, no error message.

I uncommented the

hdmi_drive=2

line in

/boot/config.txt

and rebooted - same.

OS:

No LSB modules are available.
Distributor ID: Raspbian
Description: Raspbian GNU/Linux 8.0 (jessie)
Release: 8.0
Codename: jessie

--
underground experts united .... http://user.it.uu.se/~embe8573
Emacs Gnus Blogomatic ......... http://user.it.uu.se/~embe8573/blogomatic
- so far: 42 Blogomatic articles -

[Emanuel Berg]

Emanuel Berg <embe...@student.uu.se> writes:

> On my Raspberry Pi 2, I suddenly have no HDMI
> sound and no headphone sound either save for
> the hello_audio.bin test, which works for the
> headphones but not the HDMI.

I have this wrapper for the omxplayer - note the
line with adev - I put local there and the
3.5 mm audio port sends sound.

However putting 'hdmi' or 'both' there, as the
man page describes, doesn't get the HDMI
(audio) going.

plo () {
local file=$1

if [[ ! -f $file ]]; then
no-file-msg $file
return
fi

local keys=~/public_html/conf/.omx-keys

local vol_mod=0
sudo omxplayer --align center \
--blank \
--key-config $keys \
--loop \
--font-size 35 \
--vol $vol_mod \
--adev local \
$file > /dev/null
}

Also, I wrote this function to test the sound:

test-sound () {
sudo modprobe snd_bcm2835
for output in 0..2; do
sudo amixer -c 0 cset numid=3 $output
sudo aplay /usr/share/sounds/alsa/Front_Center.wav
done

/opt/vc/src/hello_pi/hello_audio/hello_audio.bin # 3.5 mm
/opt/vc/src/hello_pi/hello_audio/hello_audio.bin 1 # HDMI
}

Well, at this point, it confirms the state...

[Emanuel Berg]

What I did was dist-upgrade, and now it works,
with pulseaudio installed. I don't know if
pulseaudio is what did it, but it seems
reasonable...