Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.19 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'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v3.19-rc3-vivid/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- 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/1407875 Title: [HP 14 Notebook PC][8086:1e20] mute LED does not work Status in HWE Next Project: New Status in linux package in Ubuntu: Confirmed Bug description: HP 14 Notebook PC (CID 201404-14936) on 14.04.1 3.13.0-43-generic #72 Audio Controller [8086:1e20] Steps to reproduce this bug: 1. install 14.04.1 on HP 14 Notebook PC (CID 201404-14936) and boot to the desktop. Ready to use Ubuntu 2. press mute key. The playback is muted. Expected result: The mute LED became amber. Actual result: The mute LED has no response. More information: sudo hda-verb /dev/snd/hwC0D0 0x18 SET_PIN_WIDGET_CONTROL 0x24 sudo hda-verb /dev/snd/hwC0D0 0x18 SET_PIN_WIDGET_CONTROL 0x20 could turn on/off the mute LED seperately. --------------------------------------------------------- ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-43-generic 3.13.0-43.72 ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11 Uname: Linux 3.13.0-43-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ubuntu 1521 F.... pulseaudio CurrentDesktop: Unity Date: Tue Jan 6 14:05:21 2015 HibernationDevice: RESUME=UUID=2121b5cf-c83b-4a11-ae45-a7fcc3a70048 InstallationDate: Installed on 2014-12-18 (18 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Hewlett-Packard HP 15 Notebook PC ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic.efi.signed root=UUID=31c5f412-f969-4705-81f7-2e85fbf53b4d ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-43-generic N/A linux-backports-modules-3.13.0-43-generic N/A linux-firmware 1.127.10 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/17/2014 dmi.bios.vendor: Insyde dmi.bios.version: B.34 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 226C dmi.board.vendor: Hewlett-Packard dmi.board.version: 74.20 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrB.34:bd06/17/2014:svnHewlett-Packard:pnHP15NotebookPC:pvr098F110000000E10000000000:rvnHewlett-Packard:rn226C:rvr74.20:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP 15 Notebook PC dmi.product.version: 098F110000000E10000000000 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1407875/+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