README revision 1.1
1 1.1 mrg Information for Intel graphics driver users 2 1.1 mrg Eric Anholt 3 1.1 mrg 2007-07-02 4 1.1 mrg 5 1.1 mrg This document provides a brief summary of the Intel graphics support provided 6 1.1 mrg by the xf86-video-intel driver. More information can also be found in the 7 1.1 mrg intel(4) manual page. 8 1.1 mrg 9 1.1 mrg Supported Hardware: 10 1.1 mrg i810, 11 1.1 mrg i810-dc100, 12 1.1 mrg i810e 13 1.1 mrg i815 14 1.1 mrg i830 15 1.1 mrg i845 16 1.1 mrg i852 17 1.1 mrg i855 18 1.1 mrg 915G 19 1.1 mrg 915GM 20 1.1 mrg 945G 21 1.1 mrg 945GM/GME 22 1.1 mrg 946GZ 23 1.1 mrg G965 24 1.1 mrg GM/GME965 25 1.1 mrg G33/Q33/Q35 26 1.1 mrg 27 1.1 mrg Features 28 1.1 mrg - Full support for 8, 15, 16, and 24 bit pixel depths. 29 1.1 mrg - Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24 bit 30 1.1 mrg pixel depths. 31 1.1 mrg - Hardware accelerated 3D drawing using OpenGL and the DRI. 32 1.1 mrg - Hardware cursor support to reduce sprite flicker. 33 1.1 mrg - Textured video XV implementation on i915 through i965. 34 1.1 mrg - Hardware overlay XV implementation up through i945. 35 1.1 mrg - Screen resize and rotation. 36 1.1 mrg 37 1.1 mrg Technical Notes 38 1.1 mrg - Interlace modes cannot be supported. 39 1.1 mrg - This driver requires kernel support for AGP, which is included in Linux 40 1.1 mrg kernels 2.3.42 and higher, and FreeBSD 4.1 and higher. 41 1.1 mrg - This driver may be built against xserver 1.2.0 or newer. If built 42 1.1 mrg from git source against an older server, a copy of xserver 1.3.0 source is 43 1.1 mrg needed to complete the build, which is chosen with the --with-xserver-source 44 1.1 mrg argument to ./configure. The compatibility mode with xserver 1.2.0 will have 45 1.1 mrg limited functionality, in particular by not supporting RandR 1.2 or the 46 1.1 mrg new Damage 1.1 updated needed for 3D applications to work with display 47 1.1 mrg rotation. 48 1.1 mrg 49 1.1 mrg Configuration 50 1.1 mrg 51 1.1 mrg The driver auto-detects all device information necessary to 52 1.1 mrg initialize the card. The only lines you should need in the "Device" 53 1.1 mrg section of your xorg.conf file are: 54 1.1 mrg 55 1.1 mrg Section "Device" 56 1.1 mrg Identifier "intel" 57 1.1 mrg Driver "intel" 58 1.1 mrg EndSection 59 1.1 mrg 60 1.1 mrg Please refer to the intel(4) manual page for information on configuration 61 1.1 mrg options. 62 1.1 mrg 63 1.1 mrg 64 1.1 mrg Known Limitations 65 1.1 mrg - No support for "zaphod mode" dualhead. This is the mode in which two 66 1.1 mrg Device sections are placed in the config file, and doesn't support DRI or 67 1.1 mrg many other features. Instead, only "MergedFB-style" dualhead is supported. 68 1.1 mrg - No support for X Screens larger than 2048 pixels in either direction 69 1.1 mrg before the 965. This reflects hardware limitations in the x direction on 70 1.1 mrg those older chips, and limits dualhead functionality. It may be possible to 71 1.1 mrg extend the limit vertically on these older chips. 72 1.1 mrg - i855 XV may cause hangs. This was present in the previous release, and no 73 1.1 mrg workaround is known. 74 1.1 mrg - SDVO TV-out cards not supported. This should be fixed in the next 75 1.1 mrg release. 76 1.1 mrg - Gray output with integrated TV-out and PAL TVs. 77 1.1 mrg - EXA support unstable on i845. 78 1.1 mrg - Some GM965 systems, such as the Thinkpad T61, probe the TV as being connected 79 1.1 mrg even when no output connector is available. This results in the gnome-panel 80 1.1 mrg issue noted below. 81 1.1 mrg 82 1.1 mrg Common issues not caused by the driver 83 1.1 mrg - Font sizes (DPI) are wrong. Some displays incorrectly report their 84 1.1 mrg physical size, which is harmless on most OSes that always assume 96dpi 85 1.1 mrg displays. This can be fixed through quirks for specific monitors in the X 86 1.1 mrg Server, and the output of xrandr --prop along with a physical measurement of 87 1.1 mrg the screen size in a bug report against the server can help get that fixed. 88 1.1 mrg - gnome-panel is located in the middle of the screen. gnome-panel places 89 1.1 mrg itself within head #0's boundaries, which doesn't work well with a second 90 1.1 mrg head covering the same area as head #0 but larger. 91 1.1 mrg - Older resolution-changing applications have poor results in 92 1.1 mrg multihead systems. Previous extensions such as RandR 1.1 exposed only a 93 1.1 mrg single output to client programs, and those requests map poorly to multi-head 94 1.1 mrg systems. Currently, those requests map to just one of the outputs in the 95 1.1 mrg RandR 1.2 environment, and those applications need to be updated to RandR 1.2 96 1.1 mrg API when available for better results. 97 1.1 mrg 98 1.1 mrg The X11R6 version of this driver originally came from XFree86 4.4 rc2. 99 1.1 mrg 100 1.1 mrg The XFree86 version of this driver was donated to The XFree86 Project by: 101 1.1 mrg Precision Insight, Inc. 102 1.1 mrg Cedar Park, TX 103 1.1 mrg USA 104 1.1 mrg 105 1.1 mrg The X.Org version of this driver is maintained by Intel Corporation. 106 1.1 mrg <http://www.intellinuxgraphics.org> 107
Indexes created Mon Oct 26 00:26:21 UTC 2026