The situation with the brightness control is a complete mess at the moment and it's getting very annoying. Unfortunately, I only have a Samsung NC10 and the brightness control here is working out-of-the-box, with no need to use the "samsung-backlight" kernel module, and I'm unable to investigate the problem further.
Anyway, from what I'm reading, each netbook model behaves differently, thus I've no clue on how to fix this permanently and for everyone. Please try these steps: - Completely remove "samsung-backlight", reboot, and check if brightness control works out-of-the-box for your model. - If not, edit the file "/etc/default/grub" and add the option "acpi_backlight=vendor" to GRUB_CMDLINE_LINUX_DEFAULT, run update-grub and reboot, and check if brightness control works. - If not, install "samsung-backlight", reboot and check if brightness control works. - If it's not working yet, edit the file "/etc/modprobe.d/samsung-backlight.conf" and comment out the line starting with "options", then reboot. - If up to this point it's not working yet, I'm sorry but I'm out of options. :( Please report here the results in order to have a more complete picture of the situation. -- 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
