Arch Linux

SilentEcho

Member

Registered: 2015-07-16

Posts: 3

Plugging headphones in doesn't auto-switch output

Using ALSA, when I plug my headphones in, it doesn't mute the speakers or unmute the headphones, i.e. the music just keeps playing through the speakers.

My /etc/asound.conf is:

defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 1

If I manually mute the speakers, it works as expected.
If I manually unmute the headphones, it works as expected.

How can I get the computer to do this automatically when I plug the headphones in?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,601

Re: Plugging headphones in doesn't auto-switch output

Welcome to Arch Linux.  Can you tell us a bit more about your system?  What is your specific hardware.  This includes the codec.  For example, Intel HD audio provides a serial link to audio codec chips that generate the actual output (HDMI, Stereo Analog, 5.1, etc...)

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SilentEcho

Member

Registered: 2015-07-16

Posts: 3

Re: Plugging headphones in doesn't auto-switch output

Hi,

The machine is a MacBook Air 6,2.

Alsamixer identifies the card as a HDA Intel PCH, with a Cirrus Logic CS4208 chip.

I believe this to be correct, as it's the same chipset that was detected on my Debian install (which did have working plug & play audio jack, though that used pulse).

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,601

Re: Plugging headphones in doesn't auto-switch output

My first suggestion would be to run alsamixer from a command line, use F6 to select the Intel Analog sound card, find the setting "Auto mute" and change it.  On my system, it wants to be off.
I don't have access to a MBA, so I cannot try my suggestions on real hardware

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Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
---
How to Ask Questions the Smart Way

SilentEcho

Member

Registered: 2015-07-16

Posts: 3

Re: Plugging headphones in doesn't auto-switch output

Have tried Auto-Mute on and off, no difference between them.