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Prevent automatic change of audio device – Ubuntu

Prevent automatic change of audio device – Ubuntu

If you are using HDMI or DisplayPort for audio, the devices regularly seem to switch back to in-built audio all by themselves. This can be due to the HDMI device becoming unavailable when the monitor turns itself off, causing PulseAudio to choose a different device. This causes a problem as PulseAudio does not automatically go back to the originally selected device once the HDMI device has returned. This is very frustrating as it means constantly having to re-selected the prefered…

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