I've discovered a slight difference with i915.alse_backlight=1: the actions over the intel_backlight interface (script associated with key combination [ echo NUM >intel_backlight ]) can reestablish a correct screen brightness while without that kernel parameters, those same actions, seem to be ignored!
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/568611 Title: Screen brightness control fails on Dell Studio 1558 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
