Microphone mute function key does not work on Lenovo X250 or X1 Carbon.
Issue
- Microphone mute function key (Fn+F4) does not work on Lenovo X250 or X1 Carbon. Mic does not mute and indicator does not appear.
- On the Lenovo X1 carbon 3rd, X250 and T550, the function keys are not working. The radio switch feature is not working either.
Environment
- Red Hat Enterprise Linux 7
- kernel-3.10.0-229.el7.x86_64
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