guga@debian:~$ cat /etc/default/grub
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
#GRUB_CMDLINE_LINUX_DEFAULT="nomodeset vga=0x034c quiet"
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset vga=0x034c fbcon=scrollback:128 quiet"
GRUB_CMDLINE_LINUX=""

#################################################
#hwinfo --framebuffer | grep 1366
#Mode 0x034a: 1366x768 (+1376), 8 bits
#Mode 0x034b: 1366x768 (+2752), 16 bits
#Mode 0x034c: 1366x768 (+5472), 24 bits
#################################################
#grub > vbeinfo
#0x14a  1366x768x8      packet
#0x14b  1366x768x16     direct
#0x14c  1366x768x32     direct
#################################################

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# 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=1366x768

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"