X230 backlight/thinklight control

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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brainwash
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Joined: Sat Mar 11, 2017 9:29 pm
Location: Frankfurt am Main, Germany

X230 backlight/thinklight control

#1 Post by brainwash » Sat Mar 11, 2017 9:45 pm

This has been asked before but starting a new topic to resurrect the idea.

I've seen that under W10 the latest Lenovo 'App' has full backlight control, as a slider. Under Ubuntu and the new kde interface there is also a kb backlight slider. So it seems that at least under Linux the backlight can be controlled discretely, don't know how to do that under W10, yet.

My idea is to have the same behavior as most modern laptops: turn backlight off after some inactivity, turn it on whenever a key is pressed or the touchpad/trackpoint is moved. To get this into an AHK script, I would need to know what functions to call into some .dll or something (Keyboard_Core.dll, LenovoKBDManager.dll,...). Does anyone have any idea?

I will eventually have to try to decompile the application, but don't want to get into that heavy work if someone has already figured stuff out.

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