Originally posted by phoronix
a) Sometimes I have to use it on VIA GPUs cause it was the only working thing with the external VGA on the laptop for beamer presentations. (CLE266)
b) Some HW just doesn't work with the appropriate driver or you have to configure the hell outta it. So first comer is VESA.
c) the mentioned failsafe mode
Even with my fine working Radeons I keep a xf86-video-vesa around, just in case. I know VESA driver kinda sucks and lately it even failed on a CN700 telling me it would not support 24bpp and things like this which must've been some strange error. Normally it should support 800x600 on 8, 16, 24 bpp or also 640x480 and 1024x786.
I'm happy when I don't have to use it but I'm also happy that there is at least VESA so I will basically get a graphic image on the screen.
Also for people with poulso or other stuff from imgtec or XGIs and the like VESA might still be the only working solution.