.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/i810/i810.man,v 1.3 2003/02/17 19:19:02 dawes Exp $ 
.\" shorthand for double quote that works everywhere.
.ds q \N'34'
.TH I810 __drivermansuffix__ __vendorversion__
.SH NAME
i810 \- Intel 8xx integrated graphics chipsets
.SH SYNOPSIS
.nf
.B "Section \*qDevice\*q"
.BI "  Identifier \*q"  devname \*q
.B  "  Driver \*qi810\*q"
\ \ ...
.B EndSection
.fi
.SH DESCRIPTION
.B i810
is an XFree86 driver for Intel integrated graphics chipsets.
The driver supports depths 8, 15, 16 and 24.  All visual types are
supported in depth 8, other depths only support TrueColor.  The driver
supports hardware accelerated 3D via the Direct Rendering Infrastructure (DRI),
but only in depth 16 for the i810/i815 and depths 16 and 24 for later chipsets.
.SH SUPPORTED HARDWARE
.B i810
supports the i810, i810-DC100, i810e, i815, 830M, 845G, 852GM, 855GM,
and 865G chipsets.

.SH CONFIGURATION DETAILS
Please refer to XF86Config(__filemansuffix__) for general configuration
details.  This section only covers configuration details specific to this
driver.
.PP
The Intel 8xx family of integrated graphics chipsets has a unified memory
architecture and uses system memory for video ram.  By default 8 Megabytes
of system memory are used for graphics.  For the 830M and later, the
default is 8 Megabytes when DRI is not enabled and 32 Megabytes with
DRI is enabled.  This amount may be changed with the
.B VideoRam
entry in the config file
.B "Device"
section.  It may be set to any reasonable value up to 64MB for older
chipsets or 128MB for newer chipets.  Note that increasing this value
will reduce the amount of system memory available for other applications.
.PP
The following driver
.B Options
are supported
.TP
.BI "Option \*qNoAccel\*q \*q" boolean \*q
Disable or enable acceleration.  Default: acceleration is enabled.
.TP
.BI "Option \*qSWCursor\*q \*q" boolean \*q
Disable or enable software cursor.  Default: software cursor is disable
and a hardware cursor is used.
.TP
.BI "Option \*qColorKey\*q \*q" integer \*q
This sets the default pixel value for the YUV video overlay key.
Default: undefined.
.TP
.BI "Option \*qCacheLines\*q \*q" integer \*q
This allows the user to change the amount of graphics memory used for
2D acceleration and video.  Decreasing this amount leaves more for 3D
textures.  Increasing it can improve 2D performance at the expense of
3D performance.
Default: 256 to 768 depending on the resolution and depth.



.SH "SEE ALSO"
XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1), X(__miscmansuffix__)
.SH AUTHORS
Authors include: Keith Whitwell, and also Jonathan Bian, Matthew J Sottek, 
Jeff Hartmann, Mark Vojkovich, Alan Hourihane, H. J. Lu.  830M and 845G
support reworked for XFree86 4.3 by David Dawes and Keith Whitwell.
852GM, 855GM, and 865G support added by David Dawes and Keith Whitwell.