Some time ago, I switched from Fluxbox to XFCE in my primary operating system, Arch Linux. I noticed a weird behavior related to the sound system. I have no pulseaudio, only ALSA. When I plugged in headphones, the speakers were not muted. Before installing XFCE, this worked like a charm. Here is a simple solution for this issue.
If your Linux system is like mine, i.e. without pulseaudio but with ALSA, you need to do the following to resolve the headphones issue:
- Open your favorite terminal app. The default XFCE terminal is a good choice.
- Type the following command:
alsamixer -V playback
- Using arrow keys, scroll the app's interface to the right until you see the trackbar called "Auto-Mute".
- Change the Auto-Mute value from Disabled to Enabled using Up/Down arrow keys:
You are done. This will change the input device behavior permanently and instantly. You need not restart your PC or anything else.
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