Lenovo ThinkPad L450 Fn keys (including the Fn toggle) don't work after wake from sleep

[arsradu]

Yeah, that's what I was about to post. Looks like what I want to achieve can't be achieved with only ACPI patches. So yes, ThinkpadAssistant brings back the rest of the functionality.

Thank you! 

 

Edit: alright. So all the customisations work properly, with ThinkPad Assistant. Everything that's supposed to work, works. Which is great.  However, the very first thing that made me open this thread...which is its functionality after waking from sleep, still doesn't.  

I'm sure there's something that's supposed to do this check, and it fails, but I don't know what am I doing wrong.