Assuming you have OS 4.2 Patch 4 installed, there's a VESA 2.0 driver bundled. Its selection of refresh rates sucks (i.e. you can't pick one, it's just hardware default, which is usually 60Hz), but ...
Im trying to get OPENSTEP installed on my P2 233 (its black though) and after it loads the basic drivers from the boot floppys it panics and reports the following:<BR ...