[SoaT]

В мане есть следующее:

Цитата: `GRUB_VIDEO_BACKEND' If graphical video support is required, either because the `gfxterm' graphical terminal is in use or because `GRUB_GFXPAYLOAD_LINUX' is set, then `grub-mkconfig' will normally load all available GRUB video drivers and use the one most appropriate for your hardware. If you need to override this for some reason, then you can set this option. After `grub-install' has been run, the available video drivers are listed in `/boot/grub/video.lst'.

Это меня может как-то спасти?)

$ cat /boot/grub/video.lst 
vbe
vga
video_bochs
video_cirrus