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.
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.