Same problem here. After updating to the latest version, I cannot adjust the brightness with the function keys. I can use however the Power Manager Brightness Applet, or overwrite the value in /sys/class/backlight/intel_backlight/backlight and thus I can control the brightness.
I also checked the kernel parameters and they are still the same as before. The output from $ ls /sys/class/backlight/ is: intel_backlight Thanks for all the help! -- 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
