VIDEOCTL(1) BSD General Commands Manual VIDEOCTL(1)NAME
videoctl -- control video device
SYNOPSIS
videoctl [-d device] -a
videoctl [-d device] name ...
videoctl [-d device] -w name=value ...
DESCRIPTION
The videoctl command displays or sets various video system driver variables. If a list of variables is present on the command line, then
videoctl prints the current value of those variables for the specified device. If the -a flag is specified, all variables for the device are
printed. If the -w flag is specified videoctl attempts to set the specified variables to the given values. The -d flag can be used to spec-
ify an alternate video device. If -d is not specified, /dev/video0 is used.
FILES
/dev/video0 video device
SEE ALSO video(4)HISTORY
The videoctl command first appeared in NetBSD 6.0.
BSD December 26, 2010 BSD
Check Out this Related Man Page
ACPI_VIDEO(4) BSD Kernel Interfaces Manual ACPI_VIDEO(4)NAME
acpi_video -- ACPI Video Extensions driver
SYNOPSIS
device acpi_video
DESCRIPTION
This driver uses the ACPI Video Extensions to control display switching and backlight brightness. The availability of the sysctl(8) vari-
ables depends on the functions offered by the host's ACPI implementation.
SYSCTL VARIABLES
The following sysctls are currently implemented, where <device> is crt, lcd, or tv:
hw.acpi.video.<device>.active
Current state of the output device.
hw.acpi.video.<device>.levels
List of supported brightness levels.
hw.acpi.video.<device>.brightness
Current brightness level of the device.
hw.acpi.video.<device>.fullpower
Preset brightness level to be used in full power mode.
hw.acpi.video.<device>.economy
Preset brightness level to be used in economy mode.
Defaults for these variables can be set in sysctl.conf(5), which is parsed at boot-time.
SEE ALSO acpi(4), loader.conf(5), sysctl.conf(5), sysctl(8)HISTORY
The acpi_video driver first appeared in FreeBSD 5.3.
AUTHORS
The acpi_video driver was written by Taku YAMAMOTO <taku@cent.saitama-u.ac.jp>. This manual page was written by Mark Santcroos
<marks@ripe.net>.
BUGS
Some systems only perform output switching via SMM even though they export the proper information via ACPI. On such systems, the proper
hotkeys or OEM driver (for example, acpi_toshiba(4)) must be used instead.
BSD November 8, 2004 BSD
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