Yes, I am the original reporter. The problem is a bit complex. My "acpi_osi=" solution used to work, until Aaron made that DOD commit. Now the brightness keys do not create events at all in 3.18 kernel.
He needs to fix that first. Regarding Ubuntu kernel, the patch works. You can see commits in my tiny fork. https://github.com/hanipouspilot/ubuntu-fixes/tree/pilot6 -- 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/1400068 Title: [ASUS X200MA] Brightness keys do not work Status in linux package in Ubuntu: Incomplete Bug description: Brightnes keys Fn+F5 and F6 do not work. This is fixed by adding "acpi_osi=" kernel option. This is also reported on other ASUS models. Information can be also found here. https://bugzilla.kernel.org/show_bug.cgi?id=7024 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.16.0-25-generic 3.16.0-25.33~14.04.2 ProcVersionSignature: Ubuntu 3.16.0-25.33~14.04.2-generic 3.16.7 Uname: Linux 3.16.0-25-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Dec 7 15:22:27 2014 InstallationDate: Installed on 2014-10-31 (37 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) SourcePackage: linux-lts-utopic UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: pilot6 1930 F.... pulseaudio CurrentDesktop: Unity CurrentDmesg: [ 35.096232] init: plymouth-upstart-bridge main process ended, respawning [ 41.464895] init: anacron main process (1153) killed by TERM signal DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=2f501090-6091-423c-abb1-a09f9c524fc3 InstallationDate: Installed on 2014-10-31 (38 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) Lsusb: Bus 001 Device 005: ID 13d3:3408 IMC Networks Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB Bus 001 Device 003: ID 0bda:5603 Realtek Semiconductor Corp. Bus 001 Device 002: ID 8087:07e6 Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. X200MA Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-25-generic.efi.signed root=UUID=8b0c6000-31d7-4e41-bfbf-4149ad0122d4 ro quiet splash acpi_osi= acpi.debug_layer=0x10000000 acpi.debug_level=4 vt.handoff=7 ProcVersionSignature: Ubuntu 3.16.0-25.33~14.04.2-generic 3.16.7 RelatedPackageVersions: linux-restricted-modules-3.16.0-25-generic N/A linux-backports-modules-3.16.0-25-generic N/A linux-firmware 1.127.10 Tags: trusty Uname: Linux 3.16.0-25-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/11/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X200MA.502 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X200MA dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX200MA.502:bd09/11/2014:svnASUSTeKCOMPUTERINC.:pnX200MA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX200MA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X200MA dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400068/+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