** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1243897
Title: MacBookPro10,1 brightness setting has no effect Status in “linux” package in Ubuntu: Confirmed Bug description: After upgrade from 13.04 to 13.10, setting the screen brightness has no effect (either via the hotkeys, "Brightness & Lock" settings, or via /sys/devices/pnp0/00:07/backlight/gmux_backlight/brightness ). I'm using nvidia driver 319.32-0ubuntu7. I've tried Option "RegistryDwords" "EnableBrightnessControl=1" in xorg.conf as well as the kernel argument acpi_backlight=vendor . I have the following in /sys: $ find /sys -name brightness /sys/devices/pnp0/00:07/backlight/gmux_backlight/brightness /sys/devices/pci0000:00/0000:00:1c.0/0000:03:00.1/leds/mmc0::/brightness /sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-12-generic 3.11.0-12.19 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 NonfreeKernelModules: wl nvidia ApportVersion: 2.12.5-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: levi 2136 F.... pulseaudio /dev/snd/controlC0: levi 2136 F.... pulseaudio /dev/snd/pcmC0D0p: levi 2136 F...m pulseaudio Date: Wed Oct 23 21:25:29 2013 HibernationDevice: RESUME=UUID=0c3f021e-1d6f-4ed4-a9e4-00ff145e91ef InstallationDate: Installed on 2012-08-24 (425 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac (20120724.2) MachineType: Apple Inc. MacBookPro10,1 MarkForUpload: True ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=2888919c-46a6-41be-874a-f3af7333ec15 ro quiet splash nomodeset nomodeset acpi_backlight=vendor vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-12-generic N/A linux-backports-modules-3.11.0-12-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-17 (5 days ago) dmi.bios.date: 08/08/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP101.88Z.00EE.B02.1208081132 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-C3EC7CD22292981F dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro10,1 dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-C3EC7CD22292981F dmi.modalias: dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B02.1208081132:bd08/08/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F: dmi.product.name: MacBookPro10,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1243897/+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