I'm on a Samsung N150 running Ubuntu 11.04 and had this problem. I installed the samsung-backlight package and that fixed it, but now it's not working again. The only significant thing I did before it stopped working again was install and then uninstall kubuntu-netbook. setpci works, though.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/574250 Title: SAMSUNG N150 Laptop : Brightness issue -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs