Yes, I have problem with it too. My temporary solution is: sudo setpci -s 00:02.0 F4.B=xx
where 00:02.0 is my device (maybe works for you too) and xx is value in hex from 0 to ff - it works fine for me I am create short script for console and for gui too, and create alias to ~/.bashrc for run that script. For now it is fastest changing brightness on my HP ProBook 4510s -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/947748 Title: Brightness control not working after latest update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/947748/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs