Hi folks, i'm a beginner on Ubuntu and i'm experiencing some dificulties.
I have installed Ubuntu 12.043. LTS on an Asus Laptop with a live cd.
board: X71SL (Pegatron corporation ATI)
bios: 09/24/2008 American Megatrends Inc version 204
proc: 2x Intel Core 2 Duo T5800 @ 2.00GHz 1999.00MHz
gc: geforce 9300M GS (Que je ne vois pas dans le report systinfo)
I've made some research on different forums and it turns out that i can only make Ubuntu works by adding the command ACPI=OFF into the grug during the boot. In this case Ubuntu works nicely.
Turning on the pc without modifying the ACPI results in a black or purple screen.
Now i want to edit definitively the /etc/default/grub file, but none of the commands i've found works. (Editing and updating grub is ok and when i restart, the grub display the changes)
Heres the command i have tryied so far:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off" (this one works only when i do it manualy)
I may need a bit of help here.
If you need any imformation, just ask.
Thanks in advance.