Ubuntu Feisty 7.04 manual page repository
Ubuntu is a free computer operating system based on the Linux kernel. Many IT companies, like DeployIS is using it to provide an up-to-date, stable operating system.
Provided by: freebsd-manpages_6.0-5_all
acpi_video - ACPI Video Extensions driver
This driver uses the ACPI Video Extensions to control display switching sysctl(8) variables depends on the functions offered by the host’s ACPI implementation. 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. sysctl.conf(5), which is parsed at boot-time. sysctl(8)
The acpi_video driver first appeared in FreeBSD 5.3.
The acpi_video driver was written by Taku YAMAMOTO 〈firstname.lastname@example.org〉. This manual page was written by Mark Santcroos 〈email@example.com〉.
Some systems only perform output switching via SMM even though they export the proper information via ACPI. On such systems, the proper acpi_toshiba(4)) must be used instead.