Instalei o ubuntu 11.04 e quando inicia fica aparecendo uma mensagem de monitor fora de frequência... como resolver ? o vídeo é onboard chipset nVidia (GeForce 6150SE nForce 430). Monitor LG eletronics 710e instalados os drives recomendados

Aqui na empresa, nas máquinas que apresentaram esse bug, resolvemos assim:

/etc/default
sudo gedit grub

Procure as linhas abaixo:

# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console (descomente (tire a cerquinha) esta linha)


# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=640x480 (descomente esta linha)

Salve o arquivo.
Execute o comando: sudo update-grub

Reinice o computador.

Fiz isso e apareceu :

error: no video mode activade

Abaixo listagem do /etc/default/grub de uma de nossas maquinas.
Não alteramos qualquer outra configuração.


*------------------------------------------------------------------------




# 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_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# 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=640x480

# 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"

*----------------------------------------------------------