NAME
vigra —
8-bit SBus color frame buffer with
VGA-compatible modes
SYNOPSIS
vigra* at sbus?
wsdisplay* at vigra?
DESCRIPTION
The Vigra VS10, VS11 and VS12 are 8-bit color frame buffers with user-selectable video modes, and a VGA-compatible connector.
The vigra driver interfaces the frame
buffer with the wscons(4) console framework. It does not provide direct device driver
entry points but makes its functions available via the internal
wsdisplay(4) interface.
The video resolution and signal synchronization modes are selected with four DIP switches on the back of the card.
VS10 and VS12 Switch Settings:
The VS10 and VS12 support the following basic modes:
| Switches | Resolution | Refresh | Description |
| 1 2 3 4 | Rate | ||
D D D D |
640x480 | 60Hz | Standard VGA, negative separate sync |
U D D D |
800x600 | 56Hz | Super VGA, negative separate sync |
D U D
D |
800x600 | 56Hz | Super VGA, positive separate sync |
U U D
D |
1024x768 | 60Hz | Super VGA, negative separate sync |
D D U
D |
1024x768 | 60Hz | Super VGA, composite sync |
U D U
D |
1024x768 | 60Hz | Super VGA, sync-on-green |
D U U
D |
1024x768 | 66Hz | Sun 386i, composite sync |
U U U
D |
1152x900 | 76Hz | Sun SPARCstation, composite sync |
D D D
U |
1152x900 | 61.5Hz | NEC 4D, composite sync |
U D D
U |
1152x900 | 66Hz | Sun SPARCstation, composite sync |
D U D
U |
800x600 | 60Hz | VESA, negative separate sync |
U U D
U |
800x600 | 72Hz | VESA, negative separate sync |
VS12-only Switch Settings:
The VS12 supports all of the previously listed modes, as well as a few high resolution settings.
| Switches | Resolution | Refresh | Description |
| 1 2 3 4 | Rate | ||
D D U
U |
1280x1024 | 60Hz | NEC xD, negative separate sync |
U D U
U |
1280x1024 | 60Hz | NEC xD, composite sync |
D U U
U |
1280x1024 | 60Hz | NEC xD, sync-on-green |
U U U
U |
1280x1024 | 67Hz | Sun SPARCstation, composite sync |
VS11 Switch Settings:
The VS11 supports a similar set of modes as the VS12, but with higher refresh rates.
| Switches | Resolution | Refresh | Description |
| 1 2 3 4 | Rate | ||
D D D
D |
640x480 | 60Hz | Standard VGA, negative separate sync |
U D D
D |
800x600 | 72Hz | VESA, negative separate sync |
D U D
D |
1024x768 | 60Hz | VESA, negative separate sync |
U U D
D |
1024x768 | 60Hz | VESA, composite sync |
D D U
D |
1024x768 | 60Hz | VESA, sync-on-green |
U D U
D |
1024x768 | 66Hz | Sun 386i, composite sync |
D U U
D |
1152x900 | 66Hz | Sun SPARCstation, composite sync |
U U U
D |
1152x900 | 76Hz | Sun SPARCstation, composite sync |
D D D
U |
1280x1024 | 67Hz | Sun SPARCstation, composite sync |
U D D
U |
1280x1024 | 60Hz | NEC xFG, negative separate sync |
D U D
U |
1280x1024 | 60Hz | NEC xFG, composite sync |
U U D
U |
1280x1024 | 60Hz | NEC xFG, sync-on-green |
D D U
U |
1280x1024 | 74Hz | NEC xFG, composite sync |
U D U
U |
1280x1024 | 74Hz | NEC xFG, sync-on-green |
D U U
U |
1280x1024 | 72Hz | HP A1097, composite sync |
U U U
U |
1280x1024 | 72Hz | Special, composite sync |