I can also confirm this for a Lenovo ThinkPad T430s with Lenovo ThinkPad Mini Dock Plus Series 3.
OS: Ubuntu 14.04.1 Kernel: Linux ThinkPad 3.13.0-36-generic #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1308674 Title: [Lenovo ThinkPad X220] kernel 3.13 i915 brightness settings broken when going from docked -> undocked To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1308674/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
