Video Modes - Gateway ALR 9200 Maintaining And Troubleshooting

Video Modes

The CL-GD5480 integrated video controller provides all standard IBM
VGA modes. With 2 MB of SGRAM standard, the system supports special
Cirrus Logic extended modes. Table 40 and Table 41 list the standard and
extended modes that this implementation supports, including the number of
colors and palette size (e.g., 16 colors out of 256 K colors), resolution, pixel
frequency, and scan frequencies.
Table 40: Standard VGA Modes
Colors
Mode Bits / (#/ Palette
in Hex Pixel Size)
0, 1 4 16/256K
2, 3 4 16/256K
4, 5 4 4/256K
6 4 2/256K
7 4 Mono
D 4 16/256K
E 4 16/256K
F 4 Mono
10 4 16/256K
11 4 2/256K
12 4 16/256K
12+ 4 16/256K
13 8 256/256K
Table 41: Extended VGA Modes
Colors
Mode Bits / (#/ Palette
in Hex Pixel Size)
58, 6A 8 16/256K
58, 6A 8 16/256K
58, 6A 8 16/256K
58, 6A 8 16/256K
5C 8 256/256K
5C 8 256/256K
5C 8 256/256K
5C 8 256/256K
5C 8 256/256K
Pixel
Freq.
Resolution (MHz)
360 X 400 14
720 X 400 28
320 X 200 12.5
640 X 200 25
720 X 400 28
320 X 200 12.5
640 X 200 25
640 X 350 25
640 X 350 25
640 X 480 25
640 X 480 25
640 X 480 31.5
320 X 200 12.5
Pixel Horiz.
Freq. Freq.
Resolution (MHz) (kHz)
800 X 600 36 35.2
800 X 600 40 37.8
800 X 600 50 48.1
800 X 600 49.5 46.9
800 X 600 36 35.2
800 X 600 40 37.9
800 X 600 50 48.1
800 X 600 49.5 46.9
800 X 600 56.25 53.7
Horiz. Vert.
Freq. Freq.
(kHz) (Hz)
31.5 70
31.5 70
31.5 70
31.5 70
31.5 70
31.5 70
31.5 70
31.5 70
31.5 70
31.5 60
31.5 60
37.5 75
31.5 70
Vert. Memory
Freq.
(Hz)
56 1MB
60 1MB
72 1MB
75 1MB
56 1MB
60 1MB
72 1MB
75 1MB
85 1MB
Video Modes 183