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      1   Information for i740 Users
      2   Precision Insight, Inc.
      3   18 February 1999
      4   ____________________________________________________________
      5 
      6   Table of Contents
      7 
      8 
      9   1. Supported Hardware
     10   2. Features
     11   3. Technical Notes
     12   4. Reported Working Video Cards
     13   5. Configuration
     14   6. Driver Options
     15   7. Known Limitations
     16   8. Author
     17 
     18 
     19   ______________________________________________________________________
     20 
     21   1.  Supported Hardware
     22 
     23 
     24   o  Intel 740 based cards.
     25 
     26 
     27 
     28   2.  Features
     29 
     30 
     31   o  Full support for 8, 15, 16, and 24 bit pixel depths.
     32 
     33   o  Hardware cursor support to reduce sprite flicker.
     34 
     35   o  Hardware accelerated 2D drawing engine support for 8, 15, 16 and 24
     36      bit pixel depths.
     37 
     38   o  Support for high resolution video modes up to 1600x1200.
     39 
     40   o  Support for doublescan video modes (e.g., 320x200 and 320x240).
     41 
     42   o  Support for gamma correction at all pixel depths.
     43 
     44   o  Fully programmable clock supported.
     45 
     46   o  Robust text mode restore for VT switching.
     47 
     48 
     49 
     50   3.  Technical Notes
     51 
     52 
     53   o  Hardware acceleration is not possible when using the framebuffer in
     54      32 bit per pixel format.
     55 
     56   o  Interlace modes cannot be supported.
     57 
     58 
     59 
     60   4.  Reported Working Video Cards
     61 
     62 
     63   o  Real3D Starfighter AGP
     64 
     65   o  Real3D Starfighter PCI
     66 
     67   o  Diamond Stealth II/G460 AGP
     68 
     69   o  3DVision-i740 AGP
     70 
     71   o  ABIT G740 8MB SDRAM
     72 
     73   o  Acorp AGP i740
     74 
     75   o  AGP 2D/3D V. 1N, AGP-740D
     76 
     77   o  AOpen AGP 2X 3D Navigator PA740
     78 
     79   o  ARISTO i740 AGP (ART-i740-G)
     80 
     81   o  ASUS AGP-V2740
     82 
     83   o  Atrend (Speedy) 3DIO740 AGP (ATC-2740)
     84 
     85   o  Chaintech AGP-740D
     86 
     87   o  EliteGroup(ECS) 3DVision-i740 AGP
     88 
     89   o  EONtronics Picasso 740
     90 
     91   o  EONtronics Van Gogh
     92 
     93   o  Everex MVGA i740/AG
     94 
     95   o  Flagpoint Shocker i740 8MB
     96 
     97   o  Gainward CardExpert 740 8MB
     98 
     99   o  Genoa Systems Phantom 740
    100 
    101   o  Gigabyte Predator i740 8MB AGP
    102 
    103   o  Hercules Terminator 128 2X/i AGP
    104 
    105   o  HOT-158 (Shuttle)
    106 
    107   o  Intel Express 3D AGP
    108 
    109   o  Jaton Video-740 AGP 3D
    110 
    111   o  Jetway J-740-3D 8MB AGP, i740 AGP 3D
    112 
    113   o  Joymedia Apollo 7400
    114 
    115   o  Leadtek Winfast S900
    116 
    117   o  Machspeed Raptor i740 AGP 4600
    118 
    119   o  Magic-Pro MP-740DVD
    120 
    121   o  MAXI Gamer AGP 8 MB
    122 
    123   o  Palit Daytona AGP740
    124 
    125   o  PowerColor C740 (SG/SD) AGP
    126 
    127   o  QDI Amazing I
    128 
    129   o  Soyo AGP (SY-740 AGP)
    130 
    131   o  Spacewalker Hot-158
    132 
    133   o  VideoExcel AGP 740
    134 
    135   o  ViewTop ZeusL 8MB
    136 
    137   o  Winfast S900 i740 AGP 8MB
    138 
    139 
    140 
    141   5.  Configuration
    142 
    143   The driver auto-detects all device information necessary to initialize
    144   the card. The only lines you need in the "Device" section of your
    145   xorg.conf file are:
    146 
    147          Section "Device"
    148              Identifier "Intel i740"
    149              Driver     "i740"
    150          EndSection
    151 
    152 
    153 
    154   However, if you have problems with auto-detection, you can specify:
    155 
    156   o  VideoRam - in kilobytes
    157 
    158   o  DacSpeed - in MHz
    159 
    160   o  MemBase - physical address of the linear framebuffer
    161 
    162   o  IOBase - physical address of the memory mapped IO registers
    163 
    164 
    165 
    166   6.  Driver Options
    167 
    168 
    169   o  "NoAccel" - Turn off hardware acceleration
    170 
    171   o  "SWCursor" - Request a software cursor (hardware is default)
    172 
    173   o  "SDRAM" - Force the use of SDRAM timings
    174 
    175   o  "SGRAM" - Force the use of SGRAM timings
    176 
    177   o  "SlowRam" - Force the use of slower ram timings
    178 
    179   o  "Dac6Bit" - Force the use of a 6 Bit Dac (8 Bit is the default)
    180 
    181   o  "UsePIO - Force the use of programmed IO (Memory mapped is the
    182      default)
    183 
    184   Note: the i740 X server should automatically detect whether your card
    185   has SGRAM or SDRAM. Use the "sgram" and "sdram" options if it is
    186   incorrectly detected.
    187 
    188 
    189 
    190   7.  Known Limitations
    191 
    192 
    193   o  Certain drawing operations are very slow when using 24 bit pixel
    194      depth mode.
    195 
    196 
    197 
    198   8.  Author
    199 
    200 
    201   o  Original version by Kevin E Martin
    202      <mailto:kevin (a] precisioninsight.com>
    203 
    204   o  Daryll Strauss  <mailto:daryll (a] precisioninsight.com>
    205 
    206   The Xorg version of this driver originally came from XFree86 4.4 rc2.
    207 
    208   The XFree86 version of this driver was donated to The XFree86 Project
    209   by:
    210 
    211       Precision Insight, Inc.
    212       Cedar Park, TX
    213       USA
    214 
    215 
    216 
    217   http://www.precisioninsight.com
    218 
    219 
    220 
    221