# Hardware and host integrations

:::caution[Preview]
The M9 hardware work is still being tested and has not finished hardware qualification for a production release.
:::

Edge reports hardware features only when they are available on that Player. Missing CEC, DDC, microphone, or Presentation Network support should disable that feature without stopping normal playback.

## Display Control

The current M9 work moves Edge away from calling `cec-ctl` and `ddcutil` as subprocesses. Edge talks to the Linux CEC and I²C/DDC devices directly for supported power, input, brightness, volume, and mute controls.

The current stable Linux Player still uses the providers described in [Display Control](../../screens/display-control/).

## Presentation Network

Edge keeps Presentation Network behind a small helper instead of giving the main Player service unrestricted network-control access.

## Noise Meter

Noise Meter needs a working audio input on the Linux host. Edge reads level information through the Linux audio stack and does not send microphone recordings to the server.

See [Noise Meter](../../operations/plugins/noise-meter/) for setup and privacy details.

Hardware permissions should come from the Edge install setup rather than running the whole Player as root.