dpms(4)

dpms4

Vesa bios dpms driver

Usage

device dpms

Overview

The dpms driver uses the VESA BIOS to manage an external display during suspend and resume. When the machine suspends, the dpms driver turns the external display off. When the machine resumes, it restores the display to its state when the driver was first loaded.

Releases

38 releases since FreeBSD 8.1-RELEASE; the text changed 24 times.

  1. 8.1
  2. 8.2
  3. 8.3
  4. 8.4
  5. 9.0
  6. 9.1
  7. 9.2
  8. 9.3
  9. 10.0
  10. 10.1
  11. 10.2
  12. 10.3
  13. 10.4
  14. 11.0
  15. 11.1
  16. 11.2
  17. 11.3
  18. 11.4
  19. 12.0
  20. 12.1
  21. 12.2
  22. 12.3
  23. 12.4
  24. 13.0–13.2
  25. 13.3–16.0

Bugs

The VESA BIOS DPMS calls do not provide any way to identify a particular display or adapter to manipulate. As a result, this driver may have unexpected results on systems with multiple displays and/or adapters.

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's mdoc source.