Ubuntu
grub2 package

/etc/default/grub references vbeinfo

Asked by scoopex

I would like to set the graphics of grub - the configuration file /etc/default/grub references vbeinfo but this tools does not seem to be part of ubuntu anymore.
(according to packages.ubuntu.com)

----
# 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
----

Please update the reference of vbeinfo to a existing tool....

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: grub-pc 2.00-7ubuntu11
ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
Uname: Linux 3.5.0-21-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
Date: Sat Dec 22 20:40:18 2012
InstallationDate: Installed on 2012-12-22 (0 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)

Question information

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Ubuntu grub2 Edit question
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This question was originally filed as bug #1093171.

Revision history for this message
scoopex (ms-ubuntu) said : 		#1

Sorry, i oversight the fact that "vbeinfo" needs to be inserted at the grub prompt.

I added "1600x900" because this was show in the output of "vbeinfo", but it has no effect.

What needs to be used to change the graphics mode? (The hexcode?)

Revision history for this message
Sam_ (and-sam) said : 		#2

From boot menu switch to Grub prompt with [c]-key: grub>_
With [Esc] back to boot menu.

Resolution has to be supported from Grub and graphics card.

Write down the listing from Grub with
vbeinfo

and graphics card (via terminal)
sudo hwinfo --framebuffer

Select a resolution both support, open /etc/default/grub, uncomment
GRUB_GFXMODE=<resolution_here>

sudo update grub
sudo reboot

Always make a backup before edit of system files.

Reference.
http://members.iinet.net/~herman546/p20/GRUB2%20Splashimages.html#Boot_Menu_Resolution_
https://wiki.archlinux.org/index.php/GRUB2#Setting_the_framebuffer_resolution

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