Hi

I have noticed that the Speaker Mute LED and the FnLock LED doesn't work on my
Thinkpad E495.


Behaviour of Speaker mute button -
-------------------------------
When pressed, it toggles the output.mute parameter in sndioctl.
The sound is muted/unmuted.
The LED doesn't light up in either case.


Behaviour of FnLock button -
-------------------------
(I am not aware of any command to toggle FnLock from the command line)
When pressed, it toggles the state of FnLock. (ie. the button is working)
The LED doesn't normally light up. But, if the laptop resumes from sleep with
FnLock enabled, then the FnLock LED lights up. But, it doesn't turn off until
the next sleep-resume cycle.

ie. effectively, the FnLock LED does work, but it is not getting refreshed. It
only gets refreshed when the laptop is sleep and then resume.
(Sorry for my bad english)

The "refresh" issue of FnLock LED was also persistent in the Linux kernel till a
few months ago. It was resolved only recently. See this -
        https://bugzilla.kernel.org/show_bug.cgi?id=207841



How can these issues be fixed?

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