No audio on Linux Mint Debian Edition

For some reason I still ignore, yesterday my laptop became mute. I tried to restart pulseaudio from command-line obtaining a warning message:

$ sudo /etc/init.d/pulseaudio restart
PulseAudio configured for per-user sessions ... (warning).

Searching on the web I only found suggestions such as “Purge pulse from your system, then reinstall it.” Unfortunately, nothing changed. I also tried to restart alsa-utils and obtained some error messages:

$ sudo /etc/init.d/alsa-utils restart
Shutting down ALSA...done.
Setting up ALSA...warning: 'alsactl restore' failed with error message 'ALSA lib conf.c:1220:(parse_def) show is not a compound
ALSA lib conf.c:1686:(snd_config_load1) _toplevel_:24:26:Unexpected char
ALSA lib conf.c:3406:(config_file_open) /usr/share/alsa/pulse-alsa.conf may be old or corrupted: consider to remove or fix it'...ALSA lib conf.c:1220:(parse_def) show is not a compound
ALSA lib conf.c:1686:(snd_config_load1) _toplevel_:24:26:Unexpected char
... (repeated many times!)

I then googled for this error messages, also founding a solution here. However, these errors seem to be not related to the annoying problem I had with the speakers of my laptop. If fact, I had to solve the problem differently. I opened the Mixer application (from the application menĂ¹, Multimedia | Mixer) and found that something that had to be enabled was sadly disabled. What was it? Well, it was the Master control of PulseAudio. It can be accessed by selecting Playback: Internal Audio Analog Stereo (PulseAudio Mixer) in the Sound card combobox, then clicking on Select Controls… and checking Master in the popup window. That’s it! My laptop is no more mute. And yours? Let us know whether this post helped you by leaving a comment!

Update (15 Sep 2014). The problem is still there! I fixed on my laptop (now running Debian with XFCE) by adding the following command to the startup applications (in the menu select Settings | Session and Startup, then the tab Application Autostart):

$ amixer -c 0 sset 'Speaker' 100%,100%,unmute

4 thoughts on “No audio on Linux Mint Debian Edition”

  1. My version of LMDE doesn’t have a mixer setting, just volume control. But I was able to find the Playback: Internal Audio Analog Stereo option on the drop down menu. I noticed the speaker icon below the slider was grayed out. I clicked on it and presto, sound was working. Thanks for pointing me in the right direction.

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