Here is some more information that I collected. I tried toggling fn-lock while at different stages of booting.
* In the grub menu, the light does not toggle. * If I choose to boot windows, then while windows is booting, the light does not toggle. (ie, during the "swirling dots" screen.) * Once windows gets to the login screen, the light does toggle. This implies the light only works once windows has loaded a driver or similar. * If I instead choose to boot Ubuntu, then the light does not toggle. Not during boot, at the login screen, or after logged in. * If I enter the BIOS setup, then the light does toggle there. If I exit and boot into Ubuntu then the light no longer toggles. I strongly suspect there is at least some OS involvement with the fn- lock LED working. -- 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/1881015 Title: Fn Lock light does not come on to indicate when Fn Lock is enabled Status in linux package in Ubuntu: Confirmed Bug description: I have a Lenovo E595 running Ubuntu 20.04. The "Fn Lock" feature on the keyboard works in terms of how it modifies subsequent presses of the F1-F12 keys, but the little light on the Esc key doesn't show the current state. Example: 1. I press F5 a few times, and the screen brightness is adjusted. 2. I press Fn+Esc, and "Fn Lock" is now on, but the light hasn't changed. 3. I press F5 again, or several times, and it acts as a normal F5 (ie my browser might refresh the page). 4. I press Fn+Esc again, and "Fn Lock" is now off, but again the light hasn't changed. So, "Fn Lock" works in the sense that it modifies what keypresses do, but the little light on the Esc key doesn't come on. Under Windows the light does toggle, to show the current status. The behaviour is the same on Xorg and Wayland. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-generic 5.4.0.31.36 ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34 Uname: Linux 5.4.0-31-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: paul 2138 F.... pulseaudio /dev/snd/controlC0: paul 2138 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed May 27 21:37:47 2020 InstallationDate: Installed on 2020-05-13 (14 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 20NFCTO1WW ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-31-generic root=UUID=f7c34228-ee6f-4043-931c-f4752ad503c8 ro quiet splash nomodeset vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-31-generic N/A linux-backports-modules-5.4.0-31-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/30/2020 dmi.bios.vendor: LENOVO dmi.bios.version: R11ET36W (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 20NFCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrR11ET36W(1.16):bd03/30/2020:svnLENOVO:pn20NFCTO1WW:pvrThinkPadE595:rvnLENOVO:rn20NFCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad E595 dmi.product.name: 20NFCTO1WW dmi.product.sku: LENOVO_MT_20NF_BU_Think_FM_ThinkPad E595 dmi.product.version: ThinkPad E595 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881015/+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
