Remove noise when no audio on Linux

Disable power save for the audio device system-wide by running the command

echo 0 | sudo tee /sys/module/snd_hda_intel/parameters/power_save

Make changes permanent

echo "snd_hda_intel power_save=0" | sudo tee /etc/modprobe.d/audio_disable_powersave.conf

How to Fix Static Noise Issue in Linux