We can perform a "Reverse" bisect to identify the commit that partially fixes this issue. We first need to know the last kernel that had the bug and the first kernel version that did not. Can you test the following kernel next:
4.13-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13-rc1 ** Tags added: performing-bisect -- 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/1710877 Title: Fn Keys Not working Ubuntu 16.04 Asus FX553Vd Status in linux package in Ubuntu: Confirmed Bug description: Hi, I have an ASUS FX553VD machne. Some of my Fn keys are not working. For example, Fn+F5/F6 to increase/decrease the brightness and Fn+F3/F4 to adjust the keyboard LED brightness and Fn+F2(Airplane Mode). sudo dmidecode -s bios-version GL553VD.302 uname-a Linux mlp-GL553VD 4.4.0-91-generic #114-Ubuntu SMP Tue Aug 8 11:56:56 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux dmesg | grep -i asus [ 0.000000] ACPI: RSDP 0x000000007AAA4000 000024 (v02 _ASUS_) [ 0.000000] ACPI: XSDT 0x000000007AAA40B8 0000F4 (v01 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.000000] ACPI: FACP 0x000000007AAD3618 000114 (v06 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.000000] ACPI: DSDT 0x000000007AAA4240 02F3D8 (v02 _ASUS_ Notebook 01072009 INTL 20160422) [ 0.000000] ACPI: APIC 0x000000007AAD3730 0000BC (v03 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.000000] ACPI: FPDT 0x000000007AAD37F0 000044 (v01 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.000000] ACPI: MCFG 0x000000007AAD3838 00003C (v01 _ASUS_ Notebook 01072009 MSFT 00000097) [ 0.000000] ACPI: FIDT 0x000000007AAD3B70 00009C (v01 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.000000] ACPI: BGRT 0x000000007AADE938 000038 (v01 _ASUS_ Notebook 01072009 AMI 00010013) [ 0.046989] Hardware name: ASUSTeK COMPUTER INC. GL553VD/GL553VD, BIOS GL553VD.302 03/06/2017 [ 3.113648] asus_wmi: ASUS WMI generic driver loaded [ 3.114634] asus_wmi: Initialization: 0x1 [ 3.114680] asus_wmi: BIOS WMI version: 8.1 [ 3.114732] asus_wmi: SFUN value: 0x4a0061 [ 3.115047] input: Asus WMI hotkeys as /devices/platform/asus-nb-wmi/input/input9 [ 3.115210] asus_wmi: Number of fans: 1 sudo evtest No device specified, trying to scan all of /dev/input/event* Available devices: /dev/input/event0: Sleep Button /dev/input/event1: Power Button /dev/input/event2: Lid Switch /dev/input/event3: Power Button /dev/input/event4: AT Translated Set 2 keyboard /dev/input/event5: Video Bus /dev/input/event6: Video Bus /dev/input/event7: ITE Tech. Inc. ITE Device(8910) /dev/input/event8: Asus WMI hotkeys /dev/input/event9: USB2.0 UVC HD Webcam /dev/input/event10: HDA Intel PCH Headphone /dev/input/event11: HDA Intel PCH HDMI/DP,pcm=3 /dev/input/event12: HDA Intel PCH HDMI/DP,pcm=7 /dev/input/event13: HDA Intel PCH HDMI/DP,pcm=8 /dev/input/event14: ELAN1200:00 04F3:3045 Touchpad Select the device event number [0-14]: --- ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mlp 1552 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 HibernationDevice: RESUME=UUID=2b0f4c5d-67b4-4f86-b6a4-1c8f92998187 InstallationDate: Installed on 2017-08-14 (1 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 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 13d3:5654 IMC Networks Bus 001 Device 004: ID 0b05:1854 ASUSTek Computer, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: ASUSTeK COMPUTER INC. GL553VD NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-91-generic.efi.signed root=UUID=40c41303-9bd9-4238-b4eb-8d1ec7845bfe ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-91.114-generic 4.4.76 RelatedPackageVersions: linux-restricted-modules-4.4.0-91-generic N/A linux-backports-modules-4.4.0-91-generic N/A linux-firmware 1.157.11 Tags: xenial Uname: Linux 4.4.0-91-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 03/06/2017 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: GL553VD.302 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: GL553VD 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.:bvrGL553VD.302:bd03/06/2017:svnASUSTeKCOMPUTERINC.:pnGL553VD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnGL553VD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: GL553VD dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. 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