26

The instructions in /etc/default/grub say to run vbeinfo,

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

but that command isn't found in GRUB,

grub> vbeinfo
error: can't find command `vbeinfo'.

or in the terminal:

$ vbeinfo
vbeinfo: command not found

Where is it?

24

If anyone still cares its actually

videoinfo

for grub-efi

  • 1
    Oh yes I do care! Native resolution reduces screen refresh rate to what looks like 1 fps on a laptop I have here. The problem didn't get resolved in past releases and it would drive the person who is going to receive this laptop soon crazy. 1024x768 runs fine on T560 so thank you very much! :) – LiveWireBT Mar 20 '18 at 8:27
5

vbeinfo is a module in grub-pc, not in grub-efi. I suppose you could boot an external media with the old grub and run vbeinfo, but it is not a part of the new grub. Probably secure boot led to some restrictions on what grub can run.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.