Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 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'. 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/v4.8-rc6 ** 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/1623804 Title: headset microphone is not recognized in headset-jack Status in linux package in Ubuntu: Incomplete Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1623804/+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
