For the Samsung, the problem seems to come from not updated packages Hence, some of the depositories are disabled when you upgrade ubuntu. Have a look here: https://launchpad.net/~voria/+archive/ppa?field.series_filter=natty
And see if the problem persists with the updated packages. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-power-manager in Ubuntu. https://bugs.launchpad.net/bugs/768809 Title: screen brightness blinking on MSI VR420 notebook -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs