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diff --git a/README.sgml b/README.sgml new file mode 100644 index 0000000..2ec3e7b --- /dev/null +++ b/README.sgml @@ -0,0 +1,77 @@ +<!DOCTYPE linuxdoc PUBLIC "-//XFree86//DTD linuxdoc//EN"> + +<article> +<title> Information for Alliance Promotion chipset users +<author> Henrik Harmsen (Henrik.Harmsen@erv.ericsson.se) +<date> 23 February 1998 +<toc> + +<sect> Support chipsets +<p> +The apm driver in the SVGA server is for Alliance Promotion +(www.alsc.com) graphics chipsets. The following chipsets are supported: + +<itemize> +<item> 6422 + + Old chipset without color expansion hardware (text accel). + +<item> AT24 + + As found in Diamond Stealth Video 2500. Quite similar to AT3D. + +<item> AT25, AT3D + + AT3D is found in Hercules Stingray 128/3D. Most other Voodoo + Rush based cards use the AT25 which is identical except it + doesn't have the 3D stuff in it. +</itemize> + +<sect> Acceleration +<p> +The apm driver uses the XAA (XFree86 Acceleration Architecture) in the +SVGA server. It has support for the following acceleration: + +<itemize> +<item> Bitblts (rectangle copy operation) +<item> Lines (solid, single pixel) +<item> Filled rectangles +<item> CPU->Screen colour expansion (text accel). Not for 6422. +<item> Hardware cursor +</itemize> + +All in 8, 16 and 32 bpp modes. No 24bpp mode is supported. +Also VESA DPMS power save mode is fully supported with "standby", +"suspend" and "off" modes (set with with the "xset dpms" command). + +<sect> Configuration +<p> +First: Please run the XF86Setup program to create a correct +configuration. + +You can turn off hardware cursor by inserting the following line in the +Device section of the XF86Config file: + + Option "sw_cursor" + +Or turn off hardware acceleration: + + Option "noaccel" + +Please don't specify the amount of video RAM you have or which chipset +you have in the config file, let the driver probe for this. Also please +don't put any "clocks" line in the device section since these chips have +a fully programmable clock that can take (almost) any modeline you throw +at it. It might fail at some specific clock values but you should just +try a slightly different clock and it should work. + + + +<verb> +$XFree86: xc/programs/Xserver/hw/xfree86/doc/sgml/apm.sgml,v 1.1.2.2 1998/02/25 12:20:30 dawes Exp $ + + + +$Xorg: apm.sgml,v 1.3 2000/08/17 19:51:06 cpqbld Exp $ +</verb> +</article> |