137 lines
3.6 KiB
Plaintext
137 lines
3.6 KiB
Plaintext
<!DOCTYPE linuxdoc PUBLIC "-//XFree86//DTD linuxdoc//EN" [
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<!ENTITY % defs SYSTEM "defs.ent"> %defs;
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]>
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<article>
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<title>Information for i810 Users
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<author>Precision Insight, Inc.
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<date>3 March 2000
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<ident>
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$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/i810.sgml,v 1.4 2001/04/04 01:34:18 dawes Exp $
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</ident>
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<toc>
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<sect>Introduction
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<p>
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This document provides a brief summary of the i810/i815 support provided
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by the i810 driver. Support for later chipsets is not covered here.
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More up to date information about the i810 driver can be found in the
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<htmlurl name="i810(4)" url="i810.4.html"> manual page.
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<sect>Supported Hardware
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<p>
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<itemize>
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<item>Intel 810 motherboards:
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<itemize>
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<item>i810,
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<item>i810-dc100,
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<item>i810e
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<item>i815
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</itemize>
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</itemize>
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<sect>Features
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<p>
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<itemize>
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<item>Full support for 8, 15, 16, and 24 bit pixel depths.
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<item>Hardware cursor support to reduce sprite flicker.
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<item>Hardware accelerated 2D drawing engine support for 8, 15, 16 and
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24 bit pixel depths.
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<item>Support for high resolution video modes up to 1600x1200.
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<item>Fully programmable clock supported.
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<item>Robust text mode restore for VT switching.
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</itemize>
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<sect>Technical Notes
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<p>
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<itemize>
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<item>Hardware acceleration is not possible when using the framebuffer
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in 32 bit per pixel format, and this mode is not supported by
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this driver.
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<item>Interlace modes cannot be supported.
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<item>This driver currently only works for Linux/ix86 and recent versions
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of FreeBSD. It requires the agpgart kernel support, which is
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included in Linux kernels 2.3.42 and higher, and FreeBSD 4.1
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and higher.
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</itemize>
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<sect>Reported Working Video Cards
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<p>
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<itemize>
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<item>Intel evaluation hardware - i810, i810-dc100, i810e and i815.
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<item>Tyan Tomcat Motherboard.
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<item>HappyPC set-top box.
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</itemize>
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<sect>Configuration
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<p>
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The driver auto-detects all device information necessary to
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initialize the card. The only lines you need in the "Device"
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section of your xorg.conf file are:
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<verb>
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Section "Device"
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Identifier "Intel i810"
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Driver "i810"
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EndSection
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</verb>
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or let <tt>xorgconfig</tt> do this for you.
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However, if you have problems with auto-detection, you can specify:
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<itemize>
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<item>DacSpeed - in MHz
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<item>MemBase - physical address of the linear framebuffer
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<item>IOBase - physical address of the memory mapped IO registers
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</itemize>
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In order to use most resolutions, it is necessary to install the
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'agpgart.o' module. You will probably have to compile the module yourself
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(see the notes in the module).
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Note: the i810 driver detects whether your motherboard has display cache
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video memory. This memory is has reduced bandwidth compared to normal
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system memory, and isn't used by the server. The main function of this
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memory is for ancillary buffers (eg. z buffer) in a forthcoming 3d
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capable server.
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<sect>Driver Options
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<p>
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<itemize>
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<item>"NoAccel" - Turn off hardware acceleration
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<item>"SWCursor" - Request a software cursor (hardware is default)
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<item>"Dac6Bit" - Force the use of a 6 Bit Dac (8 Bit is the default)
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</itemize>
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<sect>Known Limitations
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<p>
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<itemize>
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<item>No 3D support in this release.
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<item>Running two X servers on different VTs is not supported at this time.
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</itemize>
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<sect>Author
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<p>
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<itemize>
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<item>Keith Whitwell
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</itemize>
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The X11R&relvers; version of this driver originally came from XFree86 4.4 rc2.
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The XFree86 version of this driver was donated to The XFree86 Project by:
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<verb>
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Precision Insight, Inc.
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Cedar Park, TX
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USA
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</verb>
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<htmlurl name="http://www.precisioninsight.com"
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url="http://www.precisioninsight.com">
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</article>
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