Wu Zhangjin schreef:
Seems the latest EC shut the backlight off when Fn + F2 is pressed, and
if we do it in kernel again, it fails to resume the original brightness,
even if I save/restore the original brightness manually.

(This is exactly an interface problem between EC and Kernel)

Just "fixed" it via avoiding shutting the backlight off again in kernel.
but Fn + F2 will not work for the users who are using the old ECs.

Fn+F2 doesn't work for me. cat /proc/cmdline says "EC_VER=undefined". I guess I have an old EC then?


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