The following is the content on ThinkWiki, does it need to change the keymap? "If you have a recent version of udev/systemd (see this patch) the acpi trick will not work. The mic mute button will be mapped to F20 (keycode 190), which you should be able to configure normally using the GNOME keyboard settings or similar."
-- 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/1268880 Title: unable to toggle microphone mute on T410 / unable to unload thinkpad_acpi module Status in “linux” package in Ubuntu: Confirmed Bug description: I recently pressed the physical microphone mute button on my Lenovo T410. However, I am now unable to unmute it. The orange light next to the mic mute button comes on when the kernel boots, but pressing it has no effect. Possibly related to this, I am now unable to unload the thinkpad_acpi kernel module (required to run the fan in disengaged mode to work around the long-standing bug 751689) as it seems to be permanently hooked into the sound drivers: $ sudo modprobe -r thinkpad_acpi modprobe: FATAL: Module thinkpad_acpi is in use. $ sudo lsmod|grep thinkpad_acpi thinkpad_acpi 69003 1 nvram 14027 1 thinkpad_acpi snd 60871 23 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device,snd_seq_midi $ sudo modprobe -r thinkpad_acpi snd_hwdep snd_timer snd_hda_codec_hdmi snd_hda_codec_conexant snd_pcm snd_seq snd_rawmidi snd_hda_codec snd_hda_intel thinkpad_acpi snd_seq_device snd_seq_midi modprobe: FATAL: Module thinkpad_acpi is in use. $ ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-2-generic 3.13.0-2.17 ProcVersionSignature: Ubuntu 3.13.0-2.17-generic 3.13.0-rc7 Uname: Linux 3.13.0-2-generic i686 NonfreeKernelModules: nvidia ApportVersion: 2.13.1-0ubuntu1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: james 3261 F.... pulseaudio /dev/snd/controlC0: james 3261 F.... pulseaudio /dev/snd/pcmC0D0p: james 3261 F...m pulseaudio CurrentDesktop: Unity Date: Tue Jan 14 08:52:57 2014 HibernationDevice: RESUME=UUID=67e3cd44-242b-4bbf-918b-28fff81e0312 InstallationDate: Installed on 2010-10-21 (1181 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) MachineType: LENOVO 2516CTO ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-2-generic root=UUID=7ad192e9-7b26-49d1-8e1c-fefc7dc495cb ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.13.0-2-generic N/A linux-backports-modules-3.13.0-2-generic N/A linux-firmware 1.121 SourcePackage: linux UpgradeStatus: Upgraded to trusty on 2013-11-01 (73 days ago) dmi.bios.date: 08/27/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6IET72WW (1.32 ) dmi.board.name: 2516CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6IET72WW(1.32):bd08/27/2010:svnLENOVO:pn2516CTO:pvrThinkPadT410:rvnLENOVO:rn2516CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2516CTO dmi.product.version: ThinkPad T410 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1268880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

