People have successfully used # 9 XGE Level 12, ELSA Winner 1000 boards, and others with the S3928P under Linux.
tldraben@eos.ncsu.edu said about the following cards:
Genoa Phantom 8900PCI card seems to work well Genoa Phantom/W32 2MB does not work in an ASUS-Board. Tseng 3000/W32i chipset seems to work well Spea-v7 mecury-lite works perfect since XFree86-2.1
ATI Graphics Ultra Pro for PCI with 2MB VRAM and an ATI68875C DAC runs great as far as dem@skyline.dayton.oh.us tells us: "It's humming right along at 1280x1024 w/256 colors @74Hz non-interlaced. Looks great."
Paradise WD90C33 PCI does lock up on screensaver/X says jbauer@badlands.NoDak.edu (John Edward Bauer)
miroChrystal 8S/PCI (1MB) S3 - no problem.