I'm on Linux Mint 19.3 (Kernel 5.3.0-28) and my mainboard comes with a Realtek ALC887 onboard chip (snd_hda_codec_realtek). Due to the default power managment the power saving state switches on and off on a regular basis, resulting in noticable "click" sounds when the codec gets switched back on to full power. This is pretty annoying, e.g. when visiting websites with an embedded audio element - it makes an audible click every time through the speakers.

How can I disable the power saving permanently?

Or is there a way to fix this popping noise with some sort of option for the snd_hda_codec_realtek module? I remember that I didn't have this noise on Windows at all even at startup. Realtek also advertises the ALC887 with "unique de-pop circuit: Reduces start-up popping noise".

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    – Tomachi
    Oct 4, 2021 at 8:16

1 Answer 1


It appears that the snd_hda_codec_realtek module does not support power saving, unlike snd_hda_intel.

If you are using PulseAudio, it will suspend any audio sources that have become idle for too long. The pop sound you described also occurs with external Realtek USB microphones. When starting a recording after inactivity, the first few seconds would be replaced by a loud pop sound.

As a workaround, you can comment out the following line in /etc/pulse/default.pa:

load-module module-suspend-on-idle

Afterwards, restart PulseAudio with systemctl restart --user pulseaudio.

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    Aug 31, 2022 at 23:37

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