suddenly no sound on Raspbian (Raspberry Pi 2)

[Emanuel Berg <embe8573@student.uu.se>]

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

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