Workarounds: Desktop: just hover your mouse over the icon and use the middle scroll button to raise/lower brightness (don't click because the drop down slider doesn't work)
Terminal: cat /proc/acpi/video/UVGA/LCD/brightness (you may have to look around in /proc/acpi/video) It will look something like this (probably with different numbers): levels: 20 24 28 32 37 43 50 59 69 81 95 current: 95 Pick a number and then: sudo su echo THE_NUMBER_YOU_PICKED > /proc/acpi/video/UVGA/LCD/brightness exit for me brightness changes immediately -- Power Manager Brightness not clickable https://bugs.launchpad.net/bugs/535097 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs