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How can I change console shell's resolution in ubuntu 9.10

How can I change console shell's resolution in ubuntu 9.10

How can I change console shell's resolution?

Asked by: Guest | Views: 109
Total answers/comments: 4
Guest [Entry]

"Edit /boot/grub/grub.cfg
Identify a block that looks like this (your current running kernel):

menuentry ""Ubuntu, Linux 2.6.31-14-generic"" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,1)
search --no-floppy --fs-uuid --set e5ce0bc0-d1b0-4802-a6d4-3fd9fc0e7e58
linux /boot/vmlinuz-2.6.31-14-generic root=UUID=e5ce0bc0-d1b0-4802-a6d4-3fd9fc0e7e58 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}

Edit the ""linux ..."" line and, at the end (after ""quiet splash""), leave a blank and add something like ""vga=773"" or another code, depending on the resolution. Here is a list of codes for various resolutions.

Reboot and the new resolution should be enabled.

The provided link gives a list of modes on one particular system; with the 'hwinfo' utility you can generate a list of modes for your system as follows:

hwinfo --framebuffer"
Guest [Entry]

"According this excellent howto http://harrison3001.blogspot.com/2009/09/grub-2-graphical-boot-tips-to-set.html it works for me on Ubuntu-Server-9.10.

With the following additions in /etc/default/grub:

GRUB_CMDLINE_LINUX=""gfxpayload=true""
GRUB_GFXMODE=1600x1200x32
GRUB_PRELOAD_MODULES=""vbe""

Resolution can be found out via:

hwinfo --framebuffer

I read that x32 is a must.

And modification of /etc/grub.d/00_header:

set gfxmode=${GRUB_GFXMODE} <-- FIND THIS LINE

(as you note GRUB_GFXMODE is the variable we set before through /etc/default/grub)

set gfxpayload=keep <-- THIS IS FOR THE VGA CONSOLE!

(as you note the statement keep, obviously, keeps, what?, the resolution we set before through GRUB_GFXMODE variable set into /etc/default/grub)

insmod gfxterm
insmod ${GRUB_VIDEO_BACKEND}

then run update-grub."
Guest [Entry]

try holding the shift key down while booting. when the menu appears press c for the commandline and then enter "vbeinfo" this will give you a list of supported resolutions for your videocard. It might be that the number representing what you want is there. on mine for example 1152x864x32 is 0x156 I am thinking this 156 number may be what it is looking for?
Guest [Entry]

One way would be to switch back to Grub 1, if you can figure out how. It should be doable, because Karmic still supports Grub 1 for computers that upgrade from 9.04 and earlier versions.