1.\" $OpenBSD: acpivout.4,v 1.4 2013/07/16 16:05:48 schwarze Exp $ 2.\" 3.\" Copyright (c) 2009 Paul Irofti <pirofti@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.\" 18.Dd $Mdocdate: July 16 2013 $ 19.Dt ACPIVOUT 4 20.Os 21.Sh NAME 22.Nm acpivout 23.Nd ACPI video output 24.Sh SYNOPSIS 25.Cd "acpivout* at acpivideo?" 26.Sh DESCRIPTION 27The 28.Nm 29driver supports brightness adjustment. 30It allows brightness to be adjusted either using a brightness hotkey or the 31.Xr wsconsctl 8 32variable 33.Dq display.brightness . 34.Sh SEE ALSO 35.Xr acpi 4 , 36.Xr acpivideo 4 , 37.Xr intro 4 , 38.Xr wsconsctl 8 39.Sh HISTORY 40The 41.Nm 42driver first appeared in 43.Ox 4.6 . 44.Sh AUTHORS 45.An -nosplit 46The 47.Nm 48driver was written by 49.An Paul Irofti Aq Mt pirofti@openbsd.org . 50