With the first three steps - remove 'samsung-backlight' - add the acpi_backlight - install 'samsung-backlight' I got the brightness controll work fine on my N150, without any flickering when natty dim the screen on idle.
Thank you Fortunato. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/756509 Title: N130 flickering backlight on startup -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs