Same here on a Dell XPS M1330 with up-to-date Ubuntu 8.10 after fiddling with power management settings (hdparm stuff). The brightness applet (using mouse) works fine, but through the Fn-keys the display dims all the way down (if not hitting up fast). ctrl+F1 and then back to ctrl7 works fine.
Same here on a Dell XPS M1330 with up-to-date Ubuntu 8.10 after fiddling with power management settings (hdparm stuff). The brightness applet (using mouse) works fine, but through the Fn-keys the display dims all the way down (if not hitting up fast). ctrl+F1 and then back to ctrl7 works fine.