Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc2 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1653559 Title: No brightness for Fn keys on ASUS X555L. Status in linux package in Ubuntu: Incomplete Bug description: Hi, The FN keys Fn + F5 and Fn + F6 don't work for the brightness with any version of Ubuntu/Kubuntu/Lubuntu etc... Even if I run acpi_listen the events are not detected at all. Cheers, Aldo 1) john@john-X555LAB:~$ lsb_release -rd Description: Ubuntu 16.04.1 LTS Release: 16.04 2) no clue about it. 3) Decrease the brightness by pressing Fn + F5 and increasing by Fn + F6 4) Same brightness, no difference after pressing the keys. --- ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: john 1706 F.... pulseaudio /dev/snd/controlC0: john 1706 F.... pulseaudio DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=30b021e6-b5af-4de8-af81-71108e2d8381 InstallationDate: Installed on 2016-12-28 (6 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller Bus 001 Device 003: ID 0bda:57b5 Realtek Semiconductor Corp. Bus 001 Device 002: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. X555LAB Package: linux (not installed) ProcEnviron: LANGUAGE=en_IE:en TERM=xterm PATH=(custom, no user) LANG=en_IE.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic root=UUID=aa44a294-fde3-45eb-b84f-98b998f29eef ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-57-generic N/A linux-backports-modules-4.4.0-57-generic N/A linux-firmware 1.157.6 Tags: xenial Uname: Linux 4.4.0-57-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 05/05/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X555LAB.601 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X555LAB dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX555LAB.601:bd05/05/2016:svnASUSTeKCOMPUTERINC.:pnX555LAB:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX555LAB:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X555LAB 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/1653559/+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