HDMI doesn't show up in Playback Devices anymore

[Kennen19]

PC: Dell Inspiron 5400 AIOTV: Samsung 55 QLEDI'm using a HDMI cable to connect my PC with a TV, video goes through but audio for some reason doesn't. I tried different cables and a Nintendo Switch and both worked with the TV and managed to put out Audio without me configuring any settings anywhere. Wireless connection also manages audio (Shows up in Playback Devices as well) but the video lag is really annoying then. I used to be able to connect my PC with a TV and audio worked well there but that was a while ago and I don't remember if I configured any settings there. Now when I connect my PC

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