VIA graphics controllers only work with direct PCI memory access, so you don't have to have any kernel module built or loaded.

VIA chipset support table

These VIA chipsets have been reported to work. If yours is not listed, please send a message to one of the DDCcontrol mailing lists (see Appendix A, Report problems and successes).

Name Works
dev PCI
VIA VT8623 [Apollo CLE266] integrated CastleRock graphics No Yes
VIA S3 Unichrome Pro VGA Adapter No Yes Logo