README
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@precisioninsight.com>
203
204 o Daryll Strauss <mailto:daryll@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
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