Hi, I have tested this with the latest kernel.
flex2:~$ uname -a Linux flex2 3.17.0-031700rc1-generic #201408161335 SMP Sat Aug 16 17:36:29 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux This bug is still present . THe screen does not automatically dim when power source is removed and laptop runs on battery. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1351833 Title: [Lenovo FLex 2] Display backlight does not reduce after checking 'Dim screen to save power' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1351833/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs