Lenovo T420 Internal Microphone Not Working

Home » CentOS » Lenovo T420 Internal Microphone Not Working
CentOS 2 Comments


I have CentOS 7.1 installed on my Lenovo T420 Notebook. Now I will start to have some online meetings for a software project. In Bios the I/O-settings for camera and microphone are enabled. Camera is working (tested with cheese).

In the audio settings of Gnome perferences I see an internal microphone which doesn’t produce any input. The microphone is also not disabled by the key on the keyboard.

Where can I take a look at?

Thank you in advance Tim

2 thoughts on - Lenovo T420 Internal Microphone Not Working

  • One thing to try is adjusting the gain on the microphone *after* you’ve started your conferencing application. I have to do this with my webcam mic.

  • Hi Ian,

    thanks for your reply.

    I found the solution on my own: I needed to add an option model=thinkpad to snd_hda_intel. echo options snd_hda_intel model=thinkpad >

    Now it is working.

    Thanks Tim

    Am 14.07.2015 um 21:38 schrieb Ian Pilcher: