“Old/weird laptops” sought to help test Linux kernel backlight drivers

Does zero mean no backlight or lowest?

It doesn't matter, what matters is how windows worked with the drivers. And the issue remains: the hardware companies and device driver authors won't sufficiently help Linux with compatibility.

When large countries (China has sort of woken up to this) realize that Linux is a fundamental national security defense, and properly legitimizes and funds it (IMO EU should be funding Linux development on the order of 2-10 billion per year, since it is a practical economic/cultural weapon against US/Apple/Windows/Google OS supremacy as well as a defense by having your own OS infrastructure to securely operate),

Anyway, if that happened, so much good stuff on linux desktop would happen, but alas, .... no.

I knew that piece of crap I've been storing in a closet for the past 7 years would come useful someday.