[KatarzynaCzaja]

Hello,

Please for now disable low power management for your USB driver. To do that:

1. Go to Start Menu and search for Power & Sleep settings
2. Then on the right side go to Additional Power Settings.
3. Again on the right side select Change Plan Settings
4. Expand USB settings -> USB selective suspend setting here you can select from the drop down disable.

Test if you are able to select the LG TV as your audio device.

Thank you,
Katarzyna