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ACPIVOUT(4) Device Drivers Manual ACPIVOUT(4)

acpivoutACPI video output

acpivout* at acpivideo?

The acpivout driver supports brightness adjustment. It allows brightness to be adjusted either using a brightness hotkey or the wsconsctl(8) variable “display.brightness”.

acpi(4), acpivideo(4), intro(4), wsconsctl(8)

The acpivout driver first appeared in OpenBSD 4.6.

The acpivout driver was written by Paul Irofti <>.

April 6, 2020 OpenBSD-7.1