I'm using Ubuntu 16.04 on a Lenovo ThinkPad T450s. This notebook has a combined headphones/mic "headset"-jack as used by pretty much every smartphone nowadays.
I have a Plantronics-Headset HW251/A - SupraPlus Monaural and a 4-pin 3,5mm jack cable, made for use with PCs.
When connecting the headset to the notebook, I get audio but the mic is not recognized.
In contrast, when I boot Windows 7 on the same machine, the headset (including mic) works fine.
Moreover, the headset works fine connected to an Apple MacBook Air.
In contrast, I also have an Apple Earphones-Headset which came with an iPhone, this also works with the ThinkPad under Ubuntu.
By saying "not recognized", I mean that in the audio settings of Ubuntu, when plugging in the Plantronics headset, no audio input "microphone" comes up and the internal mic of the notebook is still used.
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ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: buerger 2021 F.... pulseaudio
/dev/snd/controlC1: buerger 2021 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=21eeaf61-c437-45dc-80e3-e581eb6f795c
InstallationDate: Installed on 2015-09-15 (366 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
MachineType: LENOVO 20BX000XGE
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-36-generic root=UUID=93fc15f9-4090-40ff-a3ac-a642833f1da2 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
RelatedPackageVersions:
linux-restricted-modules-4.4.0-36-generic N/A
linux-backports-modules-4.4.0-36-generic N/A
linux-firmware 1.157.3
Tags: xenial
Uname: Linux 4.4.0-36-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-22 (146 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
_MarkForUpload: True
dmi.bios.date: 05/25/2016
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET60WW (1.24 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BX000XGE
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrJBET60WW(1.24):bd05/25/2016:svnLENOVO:pn20BX000XGE:pvrThinkPadT450s:rvnLENOVO:rn20BX000XGE:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.name: 20BX000XGE
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO
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