I also havbe the problem.I am using Ubuntu 14.04 64 bit with a Thinkpad E545."thinkpad unsupported brightness interface" message is showing while booting up.I think this problem because of our computer'GPU is AMD.
-- 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/1320659 Title: [Lenovo ThinkPad Edge E430] "thinkpad unsupported brightness interface" message is showing while booting up Status in linux package in Ubuntu: Confirmed Bug description: While I have no actual problem with adjusting the brightness, I've noticed a message that displays while booting up: "thinkpad unsupported brightness interface" ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.47 ProcVersionSignature: Ubuntu 3.13.0-24.47-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: tarunp 2026 F.... pulseaudio CurrentDesktop: Unity Date: Sun May 18 21:18:35 2014 HibernationDevice: RESUME=UUID=7769c1de-f761-42a1-841a-41dd723f7046 InstallationDate: Installed on 2014-04-21 (26 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 3254T1Q ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=5d9a6cf6-1023-43f0-82b8-7df33d90132e ro acpi_osi=Linux quiet splash acpi_backlight=vendor vt.handoff=7 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: No upgrade log present (probably fresh install) dmi.bios.date: 10/22/2012 dmi.bios.vendor: LENOVO dmi.bios.version: H0ET72WW (2.06 ) dmi.board.asset.tag: Not Available dmi.board.name: 3254T1Q 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:bvrH0ET72WW(2.06):bd10/22/2012:svnLENOVO:pn3254T1Q:pvrThinkPadEdgeE430:rvnLENOVO:rn3254T1Q:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3254T1Q dmi.product.version: ThinkPad Edge E430 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1320659/+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
