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 v4.16 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/v4.16-rc1/ ** 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/1748651 Title: Some function keys not working Status in linux package in Ubuntu: Incomplete Bug description: I have an ASUS UX305C laptop, and some of the function keys do not work. The keys in question: fn - airplane mode (f2) fn - brightness down (f5) fn - brightness up (f6) I followed the troubleshooting guide at https://wiki.ubuntu.com/Hotkeys/Troubleshooting with the following results: 1. acpi_listen gives no output when those keys are pressed 2. xev gives no output when those keys are pressed The keys work on Windows 10. On a more recent version of the similar laptop UX430UA-DH74, using the same version of Ubuntu 16.04.3, the same keys work properly. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-112-generic 4.4.0-112.135 ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98 Uname: Linux 4.4.0-112-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lev 2926 F.... pulseaudio CurrentDesktop: Unity Date: Sat Feb 10 11:47:39 2018 HibernationDevice: RESUME=UUID=4a4d8024-561e-4d5e-882c-9f75d26c69fd InstallationDate: Installed on 2016-09-11 (516 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 064e:9700 Suyin Corp. Asus Integrated Webcam Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. UX305CA ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-112-generic.efi.signed root=UUID=ce463230-5723-4211-9d44-d18e3f30c695 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-112-generic N/A linux-backports-modules-4.4.0-112-generic N/A linux-firmware 1.157.15 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 09/11/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: UX305CA.201 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: UX305CA 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.:bvrUX305CA.201:bd09/11/2015:svnASUSTeKCOMPUTERINC.:pnUX305CA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX305CA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: UX305CA 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/1748651/+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