@Miguel, Thanks for the report of this issue. This is a known issue/limitation that the USB peripheral driver is not in sync of the Hotkey LED status. The Hotkey LED should connect to the audio codec by GPIO.
We will check with the Desktop team to see if we can do some improvement in the future. -- 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/1881097 Title: [Thinkpad X1C7][Thinkpad X1C8]F1 and F4 Hotkey LED Light Stays ON/OFF when USB Headset is attached. Status in linux package in Ubuntu: Confirmed Bug description: Problem Description: Using Ubuntu 20.04 on a Thinkpad X1C7 machine. Speaker(F1) and Microphone(F4) Hotkey LED Light Stays ON/OFF when USB Headset is attached. --------------------------------------------------------- $ lsb_release -rd Description: Ubuntu 20.04 LTS Release: 20.04 Ubuntu Software: 3.36.1 --------------------------------------------------------- Expected Result: When LED light of Speaker(F1)/Microphone (F4) hotkeys is ON/OFF and then we connect USB Headset and press Speaker(F1)/Microphone (F4) hotkeys again -> LED light state will change accordingly. Actual Result: 1. When LED light of Speaker(F1)/Microphone (F4) hotkeys is OFF and then we connect USB Headset and press Speaker(F1)/Microphone (F4) hotkeys again -> LED light will STAY OFF and remains in OFF State always on the duration that the USB headset is attached to the machine. 2. If LED light of Speaker(F1)/Microphone (F4) hotkeys is ON and then we connect USB Headset and press Speaker(F1)/Microphone (F4) hotkeys again -> LED will STAY ON and remains in ON State on the duration that the USB headset is attached to the machine. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-33-generic 5.4.0-33.37 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1410 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu May 28 18:48:04 2020 InstallationDate: Installed on 2020-05-28 (0 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 20U9SITR38 ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=ab59da99-085b-4f8d-af14-4fc4240a8f83 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-33-generic N/A linux-backports-modules-5.4.0-33-generic N/A linux-firmware 1.187 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/12/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N2WET11C (1.01C ) dmi.board.asset.tag: Not Available dmi.board.name: 20U9SITR38 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:bvrN2WET11C(1.01C):bd02/12/2020:svnLENOVO:pn20U9SITR38:pvrThinkPadX1CarbonGen8:rvnLENOVO:rn20U9SITR38:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon Gen 8 dmi.product.name: 20U9SITR38 dmi.product.sku: LENOVO_MT_20U9_BU_Think_FM_ThinkPad X1 Carbon Gen 8 dmi.product.version: ThinkPad X1 Carbon Gen 8 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881097/+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
