the file is the grub configuration file: /etc/default/grub
edit it with for example: "sudo gedit /etc/default/grub" and add the option "acpi=off" into already existing GRUB_CMDLINE_LINUX_DEFAULT="" save the file!!! after that update the grub for the changes to take efekt run: "sudo update-grub" and see 4 URself :D thumbs up! -- MASTER: [i855] GPU lockup (apport-crash) https://bugs.launchpad.net/bugs/541511 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs