General Notes

# 1 General Notes

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This driver currently supports the IIT AGX-016, AGX-015, and AGX-014 chipsets. The AGX chipset is based on XGA architecture, but is missing several features and differs on others. There's an outside chance that this driver might also work with true XGA chipsets and clones like the AGX-010, but the server has had no testing on such boards (see the notes at the end of this document).

RAMDACs currently supported are the Brooktree (BT481, BT482, and BT485) and AT&T (20C505) RAMDACs used by the Hercules Graphite series, and Sierra RAMDACs (15025 and 15021), and generic VGA RAMDAC.

The current driver has a number of acceleration routines: solid and dashed zero-width lines (except AGX-014), bitblt fill's, tiles, and stipples, solid arc and polygon fills, and font cache. Performance for local-bus boards using the AGX-015 and AGX-016 is in the high 70 to low 80 kxstone range.

Boards that have had some testing include ISA and VLB versions of most of the Hercules Graphite series, Spider Black Widow VLB and Black Widow Plus VLB, and Boca Vortek VL. The Orchid Celsius is very similar to the Spider and Boca boards, except some versions may use one of the AT&T 20C49x series RAMDACs, instead of the Sierra 15025.

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