Reformat README
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Keith Packard
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README
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README
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$XFree86:
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xc/programs/Xserver/hw/xfree86/doc/sgml/i810.sgml,v 1.4
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2001/04/04 01:34:18 dawes Exp $ Information for i810 Users
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Precision Insight, Inc.
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3 March 2000
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Information for Intel graphics driver users
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Eric Anholt
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206-08-04
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____________________________________________________________
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Table of Contents
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2. Supported Hardware
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3. Features
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4. Technical Notes
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5. Reported Working Video Cards
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6. Configuration
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7. Driver Options
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8. Known Limitations
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9. Author
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5. Configuration
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6. Driver Options
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7. Known Limitations
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8. Author
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______________________________________________________________________
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[1m1. Introduction[0m
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11.. IInnttrroodduuccttiioonn
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This document provides a brief summary of the i810/i815 support
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provided by the i810 driver. Support for later chipsets is not
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covered here. More up to date information about the i810 driver can
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be found in the i810(4) manual page.
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This document provides a brief summary of the Intel graphics support
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provided by the xf86-video-intel driver. More information can also be
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found in the i810(4) manual page.
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[1m2. Supported Hardware[0m
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22.. SSuuppppoorrtteedd HHaarrddwwaarree
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+o Intel 810 motherboards:
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+o i810,
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+o i810,
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+o i810-dc100,
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+o i810-dc100,
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+o i810e
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+o i810e
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+o i815
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+o i815
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+o i830
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+o i845
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+o i852
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+o i855
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+o i915
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+o i945
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+o i965
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[1m3. Features[0m
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33.. FFeeaattuurreess
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+o Full support for 8, 15, 16, and 24 bit pixel depths.
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+o Hardware cursor support to reduce sprite flicker.
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+o Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24
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bit pixel depths.
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+o Support for high resolution video modes up to 1600x1200.
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+o Hardware accelerated 3D drawing using OpenGL and the DRI.
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+o Fully programmable clock supported.
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+o Hardware cursor support to reduce sprite flicker.
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+o Robust text mode restore for VT switching.
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+o Textured video XV implementation on i915 through i965.
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+o Hardware overlay XV implementation up through i945.
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+o Screen resize and rotation on chipsets up through i945.
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+o Screen resize on i965.
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[1m4. Technical Notes[0m
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44.. TTeecchhnniiccaall NNootteess
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+o Hardware acceleration is not possible when using the framebuffer in
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32 bit per pixel format, and this mode is not supported by this
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driver.
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+o Interlace modes cannot be supported.
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+o 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 and
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higher.
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+o This driver requires kernel support for AGP, which is included in
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Linux kernels 2.3.42 and higher, and FreeBSD 4.1 and higher.
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[1m5. Reported Working Video Cards[0m
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+o Intel evaluation hardware - i810, i810-dc100, i810e and i815.
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+o Tyan Tomcat Motherboard.
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+o HappyPC set-top box.
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[1m6. Configuration[0m
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55.. CCoonnffiigguurraattiioonn
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The driver auto-detects all device information necessary to initialize
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the card. The only lines you need in the "Device" section of your
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xorg.conf file are:
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the card. The only lines you should need in the "Device" section of
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your xorg.conf file are:
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Section "Device"
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Identifier "Intel i810"
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@ -101,54 +96,68 @@
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EndSection
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or let xorgconfig do this for you.
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However, if you have problems with auto-detection, you can specify:
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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
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yourself (see the notes in the module).
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+o DacSpeed - in MHz
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+o MemBase - physical address of the linear framebuffer
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66.. DDrriivveerr OOppttiioonnss
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+o IOBase - physical address of the memory mapped IO registers
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In order to use most resolutions, it is necessary to install the (see
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the notes in the module).
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Note: the i810 driver detects whether your motherboard has display
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cache video memory. This memory is has reduced bandwidth compared to
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normal system memory, and isn't used by the server. The main function
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of this memory is for ancillary buffers (eg. z buffer) in a
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forthcoming 3d capable server.
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Please refer to the i810(4) manual page for information on
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configuration options.
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[1m7. Driver Options[0m
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77.. KKnnoowwnn LLiimmiittaattiioonnss
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+o "NoAccel" - Turn off hardware acceleration
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+o Many systems with Intel graphics have issues with setting video
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modes at larger than some small maximum resolution. This is not
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fixed in the current release, but is being actively worked on in
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the modesetting branch.
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+o Bug #5774: Some systems have issues with VT switching. This should
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be fixed with the modesetting brach integration.
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+o "SWCursor" - Request a software cursor (hardware is default)
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+o Bug #5817: Hotkey switching from LVDS to CRT breaks CRT output.
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This is a known issue, but will not be fixed in the current
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release.
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+o "Dac6Bit" - Force the use of a 6 Bit Dac (8 Bit is the default)
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+o Bug #6635: Video is output from an incorrect offset in the
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framebuffer. This is expected to be fixed with the modesetting
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branch integration.
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+o GL_EXT_texture_compression_s3tc is not supported. We can't support
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the extension due to patent restrictions on compression, but may be
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able to support an option for partial extension support in the
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future. For now, this prevents Quake4 and some other games from
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running.
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[1m8. Known Limitations[0m
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+o Some X Test Suite cases sometimes fail due to a timeout. These
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cases include: Xt8/XtResizeWindow, Xt8/XtQueryGeometry,
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Xt9/XtAppAddInput, Xt9/XtRemoveInput, Xt9/XtAppAddTimeOut,
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Xt9/XtRemoveTimeOut, Xt9/XtAddGrab, Xt9/XtRemoveGrab.
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+o Some X Test Suite cases fail in 64-bit mode: Xlib9/XDrawArc,
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XDrawImageString, XDrawLine, XDrawRectangle, XDrawSegments,
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XFillArc, XFillPolygon, XFillRectangle, XPutImage,
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Xt11/XtVaGetSubresources, XtSetSubvalues, and XtVaSetSubvalues.
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+o No 3D support in this release.
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+o Running two X servers on different VTs is not supported at this
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time.
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+o Some GLEAN test cases fail if DRI is enabled: pointAtten,
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readPixSanity, texCombine, texCube, texEnv, texgen,
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coloredTexPerf2, and coloredLitPerf2.
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[1m9. Author[0m
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88.. AAuutthhoorr
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+o Eric Anholt
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+o Keith Whitwell
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The X11R6.8 version of this driver originally came from XFree86 4.4
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The X11R7.1 version of this driver originally came from XFree86 4.4
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rc2.
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The XFree86 version of this driver was donated to The XFree86 Project
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@ -160,7 +169,9 @@
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http://www.precisioninsight.com
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The X.Org version of this driver is maintained by Intel Corporation.
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http://www.intellinuxgraphics.org
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