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DPMS(4)			    Kernel Interfaces Manual		       DPMS(4)

NAME
       dpms -- VESA BIOS DPMS driver

SYNOPSIS
       device dpms

DESCRIPTION
       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.

SEE ALSO
       acpi_video(4)

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

FreeBSD	14.3			August 23, 2008			       DPMS(4)

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<https://man.freebsd.org/cgi/man.cgi?query=dpms&sektion=4&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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