GPU: Polaris 10/Ellesmere (RX 480) According to the documentation amdgpu.audio=0 should disable audio functionality. However, the HDMI audio devices are still present.
Not a bug. Two things: 1. The audio parameter just ignores the speakers in the display and treats it like a display without speakers. It does not make the audio device disappear. 2. The audio parameter only works with the legacy non-DC display support (amdgpu.dc=0)
Thanks for your reply. 1. But the sound *is* playing, b/c DC is default. 2. I've seen it (only w/o DC) is documented in recent kernel docs. I previously put confidence in the modinfo output, where it isn't.