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authorKeith Packard <keithp@neko.keithp.com>2006-08-09 10:29:59 -0700
committerKeith Packard <keithp@neko.keithp.com>2006-08-09 10:29:59 -0700
commitdca9f856ca21e63abeb87e4ef2c40944c26d4429 (patch)
tree1a46406dcc59a437e1482762604b3a17bca15b21 /README
parentb19ea222727ed47b69d28a03242c09d3a6ab2673 (diff)
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@@ -1,8 +1,6 @@
- $XFree86:
- xc/programs/Xserver/hw/xfree86/doc/sgml/i810.sgml,v 1.4
- 2001/04/04 01:34:18 dawes Exp $ Information for i810 Users
- Precision Insight, Inc.
- 3 March 2000
+ Information for Intel graphics driver users
+ Eric Anholt
+ 206-08-04
____________________________________________________________
Table of Contents
@@ -12,88 +10,85 @@
2. Supported Hardware
3. Features
4. Technical Notes
- 5. Reported Working Video Cards
- 6. Configuration
- 7. Driver Options
- 8. Known Limitations
- 9. Author
+ 5. Configuration
+ 6. Driver Options
+ 7. Known Limitations
+ 8. Author
______________________________________________________________________
- 1. Introduction
+ 11.. IInnttrroodduuccttiioonn
- This document provides a brief summary of the i810/i815 support
- provided by the i810 driver. Support for later chipsets is not
- covered here. More up to date information about the i810 driver can
- be found in the i810(4) manual page.
+ This document provides a brief summary of the Intel graphics support
+ provided by the xf86-video-intel driver. More information can also be
+ found in the i810(4) manual page.
- 2. Supported Hardware
+ 22.. SSuuppppoorrtteedd HHaarrddwwaarree
- +o Intel 810 motherboards:
+ +o i810,
- +o i810,
+ +o i810-dc100,
- +o i810-dc100,
+ +o i810e
- +o i810e
+ +o i815
- +o i815
+ +o i830
+ +o i845
+ +o i852
- 3. Features
+ +o i855
+ +o i915
- +o Full support for 8, 15, 16, and 24 bit pixel depths.
+ +o i945
- +o Hardware cursor support to reduce sprite flicker.
+ +o i965
- +o Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24
- bit pixel depths.
- +o Support for high resolution video modes up to 1600x1200.
- +o Fully programmable clock supported.
+ 33.. FFeeaattuurreess
- +o Robust text mode restore for VT switching.
+ +o Full support for 8, 15, 16, and 24 bit pixel depths.
+ +o Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24
+ bit pixel depths.
- 4. Technical Notes
+ +o Hardware accelerated 3D drawing using OpenGL and the DRI.
+ +o Hardware cursor support to reduce sprite flicker.
- +o Hardware acceleration is not possible when using the framebuffer in
- 32 bit per pixel format, and this mode is not supported by this
- driver.
+ +o Textured video XV implementation on i915 through i965.
- +o Interlace modes cannot be supported.
+ +o Hardware overlay XV implementation up through i945.
- +o This driver currently only works for Linux/ix86 and recent versions
- of FreeBSD. It requires the agpgart kernel support, which is
- included in Linux kernels 2.3.42 and higher, and FreeBSD 4.1 and
- higher.
+ +o Screen resize and rotation on chipsets up through i945.
+ +o Screen resize on i965.
- 5. Reported Working Video Cards
+ 44.. TTeecchhnniiccaall NNootteess
- +o Intel evaluation hardware - i810, i810-dc100, i810e and i815.
- +o Tyan Tomcat Motherboard.
+ +o Interlace modes cannot be supported.
- +o HappyPC set-top box.
+ +o This driver requires kernel support for AGP, which is included in
+ Linux kernels 2.3.42 and higher, and FreeBSD 4.1 and higher.
- 6. Configuration
+ 55.. CCoonnffiigguurraattiioonn
The driver auto-detects all device information necessary to initialize
- the card. The only lines you need in the "Device" section of your
- xorg.conf file are:
+ the card. The only lines you should need in the "Device" section of
+ your xorg.conf file are:
Section "Device"
Identifier "Intel i810"
@@ -101,54 +96,68 @@
EndSection
- or let xorgconfig do this for you.
- However, if you have problems with auto-detection, you can specify:
+ In order to use most resolutions, it is necessary to install the
+ "agpgart.o" module. You will probably have to compile the module
+ yourself (see the notes in the module).
- +o DacSpeed - in MHz
- +o MemBase - physical address of the linear framebuffer
+ 66.. DDrriivveerr OOppttiioonnss
- +o IOBase - physical address of the memory mapped IO registers
+ Please refer to the i810(4) manual page for information on
+ configuration options.
- In order to use most resolutions, it is necessary to install the (see
- the notes in the module).
- Note: the i810 driver detects whether your motherboard has display
- cache video memory. This memory is has reduced bandwidth compared to
- normal system memory, and isn't used by the server. The main function
- of this memory is for ancillary buffers (eg. z buffer) in a
- forthcoming 3d capable server.
+ 77.. KKnnoowwnn LLiimmiittaattiioonnss
- 7. Driver Options
+ +o Many systems with Intel graphics have issues with setting video
+ modes at larger than some small maximum resolution. This is not
+ fixed in the current release, but is being actively worked on in
+ the modesetting branch.
+ +o Bug #5774: Some systems have issues with VT switching. This should
+ be fixed with the modesetting brach integration.
- +o "NoAccel" - Turn off hardware acceleration
+ +o Bug #5817: Hotkey switching from LVDS to CRT breaks CRT output.
+ This is a known issue, but will not be fixed in the current
+ release.
+ +o Bug #6635: Video is output from an incorrect offset in the
+ framebuffer. This is expected to be fixed with the modesetting
+ branch integration.
- +o "SWCursor" - Request a software cursor (hardware is default)
+ +o GL_EXT_texture_compression_s3tc is not supported. We can't support
+ the extension due to patent restrictions on compression, but may be
+ able to support an option for partial extension support in the
+ future. For now, this prevents Quake4 and some other games from
+ running.
- +o "Dac6Bit" - Force the use of a 6 Bit Dac (8 Bit is the default)
+ +o Some X Test Suite cases sometimes fail due to a timeout. These
+ cases include: Xt8/XtResizeWindow, Xt8/XtQueryGeometry,
+ Xt9/XtAppAddInput, Xt9/XtRemoveInput, Xt9/XtAppAddTimeOut,
+ Xt9/XtRemoveTimeOut, Xt9/XtAddGrab, Xt9/XtRemoveGrab.
+ +o Some X Test Suite cases fail in 64-bit mode: Xlib9/XDrawArc,
+ XDrawImageString, XDrawLine, XDrawRectangle, XDrawSegments,
+ XFillArc, XFillPolygon, XFillRectangle, XPutImage,
+ Xt11/XtVaGetSubresources, XtSetSubvalues, and XtVaSetSubvalues.
- 8. Known Limitations
+ +o Some GLEAN test cases fail if DRI is enabled: pointAtten,
+ readPixSanity, texCombine, texCube, texEnv, texgen,
+ coloredTexPerf2, and coloredLitPerf2.
- +o No 3D support in this release.
- +o Running two X servers on different VTs is not supported at this
- time.
+ 88.. AAuutthhoorr
-
- 9. Author
-
+ +o Eric Anholt
+o Keith Whitwell
- The X11R6.8 version of this driver originally came from XFree86 4.4
+ The X11R7.1 version of this driver originally came from XFree86 4.4
rc2.
The XFree86 version of this driver was donated to The XFree86 Project
@@ -160,7 +169,9 @@
- http://www.precisioninsight.com
+ The X.Org version of this driver is maintained by Intel Corporation.
+
+ http://www.intellinuxgraphics.org