To quote the March 1995 XFree86 HOWTO:
The following standard SVGA chipsets are supported:
TVGA8800CS, TVGA8900B, TVGA8900C, TVGA8900CL, TVGA9000,
TVGA9000i, TVGA9100B, TVGA9200CX, TVGA9320, TVGA9400CX, TVGA9420
I am interested in buying a "Trident 9440" SVGA card which isn't
listed above. Does anyone know if it is supported? Has anyone used it
with XFree86 successfully?
UVa Applied Math