Now I know this question been posted a bunch of times and I've been googling it like crazy. The common solution I've been seeing is check the audio settings and select HDMI as your default device. But the thing is, it doesn't show up at all. And I've checked both "Show disabled devices" and "Show disconnected devices" and still nothing. Picture is perfect but the audio will come out from nowhere other than my laptop. I'm currently using a Kinivo 501BN switcher, if that at all helps. I really hope someone can help me with this. I've been driving myself crazy with this.