.\"	$OpenBSD: light.4,v 1.3 2014/12/07 18:17:22 jmc Exp $
.\"	$NetBSD: light.4,v 1.1 2006/12/26 04:43:10 rumble Exp $
.\"
.\" Copyright (c) 2006 Stephen M. Rumble
.\" Copyright (c) 2003 Ilpo Ruotsalainen
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" <<Id: LICENSE_GC,v 1.1 2001/10/01 23:24:05 cgd Exp>>
.\"
.Dd $Mdocdate: December 7 2014 $
.Dt LIGHT 4 sgi
.Os
.Sh NAME
.Nm light
.Nd SGI Light graphics
.Sh SYNOPSIS
.Cd "light* at gio?"
.Cd "wsdisplay* at light?"
.Sh DESCRIPTION
The
.Nm
driver supports the SGI
.Sq Light
series of graphics controllers, also known as
.Sq Entry
or
.Sq Starter
graphics, and designated as LG1 or LG2,
which may be found in Indigo and Crimson systems.
.Pp
These controllers have a fixed 1024x768 resolution with 8-bit colour depth.
Unlike most SGI offerings, both 13W3 and VGA video cables are supported.
.Sh SEE ALSO
.Xr gio 4 ,
.Xr grtwo 4 ,
.Xr impact 4 ,
.Xr newport 4 ,
.Xr wscons 4 ,
.Xr wsdisplay 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 5.0
and was ported to
.Ox 5.2 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Stephen M. Rumble .
.Sh CAVEATS
Much is unknown about the REX chipset.
Therefore, the driver relies on the PROM to properly initialise the graphics.
.\" .Pp
.\" This driver will not run without modification on Crimson machines.