I’m always forgetting the numbers for the different frambuffer kernel settings in lilo/grub. So I’m pasting a chart here so i can come back and look at it if i need.

Color Depth     |  640x480  800x600  1024x768  1280x1024
----------------+---------------------------------------
256      (8bit) |  769      771      773       775
32k     (15bit) |  784      787      790       793
65k     (16bit) |  785      788      791       794
16.7mil (24bit) |  786      789      792       795