Conference room HDMI adapter loses audio after reboot

Minimal guidance for messy support realities.

Scenario

A room PC can display video through an adapter, but audio disappears after reboot until the adapter is replugged.

Recommended Resolution Path

  1. Check default playback device persistence and graphics driver health.
  2. Update dock, chipset, and adapter firmware if available.
  3. Test whether the issue follows one adapter model or one conference room image.
  4. Label the known-good port and adapter combination if the room setup is sensitive.

Technician Notes

Document what changed, what confirmed the fix, and whether the issue points to a broader standards gap worth addressing for the client.