Information for i740 Users <author>Precision Insight, Inc. <date>18 February 1999 <ident> </ident> <toc> <sect>Supported Hardware <itemize> <item>Intel 740 based cards. </itemize> <sect>Features <itemize> <item>Full support for 8, 15, 16, and 24 bit pixel depths. <item>Hardware cursor support to reduce sprite flicker. <item>Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24 bit pixel depths. <item>Support for high resolution video modes up to 1600x1200. <item>Support for doublescan video modes (e.g., 320x200 and 320x240). <item>Support for gamma correction at all pixel depths. <item>Fully programmable clock supported. <item>Robust text mode restore for VT switching. </itemize> <sect>Technical Notes <itemize> <item>Hardware acceleration is not possible when using the framebuffer in 32 bit per pixel format. <item>Interlace modes cannot be supported. </itemize> <sect>Reported Working Video Cards <itemize> <item>Real3D Starfighter AGP <item>Real3D Starfighter PCI <item>Diamond Stealth II/G460 AGP <item>3DVision-i740 AGP <item>ABIT G740 8MB SDRAM <item>Acorp AGP i740 <item>AGP 2D/3D V. 1N, AGP-740D <item>AOpen AGP 2X 3D Navigator PA740 <item>ARISTO i740 AGP (ART-i740-G) <item>ASUS AGP-V2740 <item>Atrend (Speedy) 3DIO740 AGP (ATC-2740) <item>Chaintech AGP-740D <item>EliteGroup(ECS) 3DVision-i740 AGP <item>EONtronics Picasso 740 <item>EONtronics Van Gogh <item>Everex MVGA i740/AG <item>Flagpoint Shocker i740 8MB <item>Gainward CardExpert 740 8MB <item>Genoa Systems Phantom 740 <item>Gigabyte Predator i740 8MB AGP <item>Hercules Terminator 128 2X/i AGP <item>HOT-158 (Shuttle) <item>Intel Express 3D AGP <item>Jaton Video-740 AGP 3D <item>Jetway J-740-3D 8MB AGP, i740 AGP 3D <item>Joymedia Apollo 7400 <item>Leadtek Winfast S900 <item>Machspeed Raptor i740 AGP 4600 <item>Magic-Pro MP-740DVD <item>MAXI Gamer AGP 8 MB <item>Palit Daytona AGP740 <item>PowerColor C740 (SG/SD) AGP <item>QDI Amazing I <item>Soyo AGP (SY-740 AGP) <item>Spacewalker Hot-158 <item>VideoExcel AGP 740 <item>ViewTop ZeusL 8MB <item>Winfast S900 i740 AGP 8MB </itemize> <sect>Configuration 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: <verb> Section "Device" Identifier "Intel i740" Driver "i740" EndSection </verb> However, if you have problems with auto-detection, you can specify: <itemize> <item>VideoRam - in kilobytes <item>DacSpeed - in MHz <item>MemBase - physical address of the linear framebuffer <item>IOBase - physical address of the memory mapped IO registers </itemize> <sect>Driver Options <itemize> <item>"NoAccel" - Turn off hardware acceleration <item>"SWCursor" - Request a software cursor (hardware is default) <item>"SDRAM" - Force the use of SDRAM timings <item>"SGRAM" - Force the use of SGRAM timings <item>"SlowRam" - Force the use of slower ram timings <item>"Dac6Bit" - Force the use of a 6 Bit Dac (8 Bit is the default) <item>"UsePIO - Force the use of programmed IO (Memory mapped is the default) </itemize> Note: the i740 X server should automatically detect whether your card has SGRAM or SDRAM. Use the "sgram" and "sdram" options if it is incorrectly detected. <sect>Known Limitations <itemize> <item>Certain drawing operations are very slow when using 24 bit pixel depth mode. </itemize> <sect>Author <itemize> <item>Original version by Kevin E Martin <email>kevin@precisioninsight.com</email> <item>Daryll Strauss <email>daryll@precisioninsight.com</email> </itemize> The Xorg version of this driver originally came from XFree86 4.4 rc2. The XFree86 version of this driver was donated to The XFree86 Project by: <verb> Precision Insight, Inc. Cedar Park, TX USA </verb> <htmlurl name="http://www.precisioninsight.com" url="http://www.precisioninsight.com"> </article>