[Bug 1308674] [NEW] [Lenovo ThinkPad X220] kernel 3.13 i915 brightness settings broken when going from docked -> undocked

2017-10-27 Thread Launchpad Bug Tracker
You have been subscribed to a public bug: This happens on my X220, running trusty, linux 3.13.0-24-generic. It's the exact same problem discussed on https://bugzilla.redhat.com/show_bug.cgi?id=1067071. Discussed also on kernel mailing list: https://lkml.org/lkml/2014/2/19/720. It worked on 3.12,

[Bug 1308674] [NEW] On a X220, kernel 3.13 i915 brightness settings broken when going from docked - undocked

2014-04-16 Thread Ursula Junque
Public bug reported: This happens on my X220, running trusty, linux 3.13.0-24-generic. It's the exact same problem discussed on https://bugzilla.redhat.com/show_bug.cgi?id=1067071. Discussed also on kernel mailing list: https://lkml.org/lkml/2014/2/19/720. To reproduce, remove the X220 from the