Interesting find! FWIW, on my system, intel_backlight/brightness is fixed at 4319, but acpi_video0/brightness is also fixed at 14. I could change the value of acpi_video1/brightness from 0 to 15 by altering the brightness either with the keys on my USB keyboard, or by using "$ xbacklight -set n", where n is a number (0 to 100).
For some reason the internal keyboard's brightness buttons are not working at the moment, but I've been having 3 different kinds of Unity crashes almost every day, so there's no certainty that my system is currently 100% functional! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/847001 Title: Adjusting display brightness is very slow on several Dell laptops To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/847001/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
