Video card manufacturers don't bother with OS/2 drivers because SciTech Display Doctor handles them. I'm transitioning all the OS/2 system in my care to the SciTech driver as they get upgraded to AGP video cards. SciTech supports PCI and AGP but not ISA cards.

IBM's site offers a free OEM version of Display Doctor, and there is a "pay for" version that has additional features.

With the SciTech driver you can actually shut down, change the video card to a different model, start back up and have it work.

There is an incompatibility with the Kensington OS/2 mouse driver, but I find I don't need that any more, because once I've moved to a PS/2 mouse the OS/2 native driver works well enough.