Hi, If I log out and log in again, the brightness is recovered.
-- 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/1313830 Title: [Lenovo ThinkPad X230] LCD Backlight dims completely when disconnecting external monitor Status in “linux” package in Ubuntu: Fix Released Status in “linux” source package in Trusty: Confirmed Bug description: After undocking with external DVI monitor connected to dock the laptop's internal LCD dims all the way (backlight still on, but as dim as it goes). Keyboard backlight controls cause OSD indicator to show backlight changing but no affect on LCD brightness. Issue also reported for RedHat here: https://bugzilla.redhat.com/show_bug.cgi?id=1067071 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: dustin 2683 F.... pulseaudio CurrentDesktop: Unity Date: Mon Apr 28 10:13:42 2014 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=79c0f3ac-bda7-4a28-9ae1-6bb19ab0fd0d InstallationDate: Installed on 2013-10-08 (201 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20130925.1) MachineType: LENOVO 2306CTO ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=2f1bbe89-ca2f-4884-8fc6-8a476dd1a475 ro RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2014-01-08 (109 days ago) dmi.bios.date: 03/05/2013 dmi.bios.vendor: LENOVO dmi.bios.version: G2ETA0WW (2.60 ) dmi.board.asset.tag: Not Available dmi.board.name: 2306CTO dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2306CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1313830/+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