Unfortunately I don't even know how to run either, so I'd need more detailed instructions for testing. However, the slider problem seems to have vanished, after installing what Update Manager offered yesterday. The function keys for setting the brightness still do not work, i.e. behave the way described earlier.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/982861 Title: Cannot adjust screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/982861/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs