I found out that the faulty behaviour when undocking ist still present in: 3.13.11-03131108-generic #201410031135 SMP Fri Oct 3 15:36:25 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
But working in: 3.14.1-031401-generic #201404141220 SMP Mon Apr 14 16:21:48 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1377120 Title: [Lenovo ThinkPad X220] Undocking notebook results in minimum brightness Status in “linux” package in Ubuntu: Incomplete Bug description: I've a X220 in 14.04 with a docking station connected to an external monitor. Undocking my notebook darkens the notebook screen. WORKAROUND: Docking it again gives normal brightness and "undocking" again gives again regular brightness. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-36-generic 3.13.0-36.63 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: adnc 2737 F.... pulseaudio /dev/snd/pcmC0D0p: adnc 2737 F...m pulseaudio CurrentDesktop: Unity Date: Fri Oct 3 13:41:38 2014 HibernationDevice: RESUME=UUID=e24f10db-88ff-46e1-9e2c-15cb62ebb376 InstallationDate: Installed on 2014-07-02 (92 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 4290C88 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-36-generic N/A linux-backports-modules-3.13.0-36-generic N/A linux-firmware 1.127.7 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/18/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET69WW (1.39 ) dmi.board.asset.tag: Not Available dmi.board.name: 4290C88 dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr8DET69WW(1.39):bd07/18/2013:svnLENOVO:pn4290C88:pvrThinkPadX220:rvnLENOVO:rn4290C88:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4290C88 dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1377120/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
