We have not faced this kind of issue in our systems so here are our recommendations:
- Ensure to have the latest audio drivers and latest Intel(R) Chipset Software Installation Utility for the board:
- If you are planning to use the on-board audio only, remove any additional drivers for the external audio cards since they are not longer required and they could be creating the issue.
- Contact your Linux* distribution support group for further assistance since this is not a fully compatible Operating System for the board:
- Test the system out of the chassis to ensure grounding is not affecting the board.