Problem still present with 3.13.0-031300rc8-generic kernel. Note that with that kernel I get the following message at boot time:
tpm_tis 00:09: A TPM error (6) occurred attempting to read a pcr value -- 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: Incomplete 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 : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp