Windows 10 1903 Line In or Mic set to "Listen to this device" won't switch with "Default Playback Device"

A

andguzman08

Hi,


There is a bug that was introduced a year ago (evidence of this here, here, and here). The issue can be reproduced with the following steps:


1. Connect 2 audio output devices

2. Connect an audio input device through a "Line In" or "Mic" port

3. For the audio input device enable "Listen to this device"

4. Ensure that the "Playback through this device" setting is set to "Default playback device"


You should now be able to hear the audio input device through the default audio output device.


5. Set the default output device to the other audio output device


All windows audio will now play for the new default playback device, except for audio input, which will still be output to the original playback device, even though the setting says it should output to the "default playback device"


If you follow the steps above exactly the issue should be easily reproduced. There are a few inconsistencies though. For example, let's say I am listening to the audio input device through speakers and then I connect wired headphones, then from my testing the audio input device will switch correctly. However if I connect bluetooth headphones, it won't switch properly. I made sure the headphones had priority over speakers in becoming the default playback device in both cases. Regardless of whether the headphones are wired or bluetooth, if they are both already connected and you switch the default device in the settings, then the input audio device won't respect the new setting.


It's been a year since this bug has been introduced and there has been no fix despite a Microsoft agent claiming the bug will be reported to the engineering team. When is this going to get fixed? It's extremely annoying to have to open the settings and manually disable and re-enable the input device so it picks the correct playback device.

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