Be able to switch off screen and keyboard backlight on lock screen to enjoy the playing audio but do not have visual disturbance or lower power consumption

[Benjamin-Loison]

When someone is sleeping.

Could switch it off and back on thanks to a keyboard shortcut.

Current workaround consists in disabling keyboard backlight and lowering at most the screen brightness.

Can probably leverage EmbeddedController.

Details

Contrarily to a relative laptop:

-----BEGIN PGP MESSAGE-----

hF4DTQa9Wom5MBgSAQdAoLbspPo8WXd2ADSBETE9DftIS2YCMiFgi3n1fLtqgzQw
OKh7FJ3qER+ywXujMAIHYtnBYPLPLEjcdxoyhhEsBoXzjoJc2UviXQsuxh/gdun6
0kABC7yGboqnoUtWp3r3v2r8W4XUyer8fCGwHlItoOVetjZHVRq0Rya2m3TRp+Q5
45FeHbuORwktu6GIbiOFPdJC
=ndBv
-----END PGP MESSAGE-----

I do not seem to have a key on my keyboard associated to switch off the screen, I have doubts concerning F9 but it seems more like a screen mirroring key but I do not have a secondary screen to test with as nothing happens when I press it no matter fn usage and Display being open.

Related to #66, but letting in theory the ability to anyone to modify even just current tab is not fine enough. For instance can access notifications while letting the audio I am listening to.

What about Power Management > Power options > When the lid is closed > Lock Screen or Do nothing? Does it switch off the screen somehow?

Please use:

https://github.com/orgs/linuxmint/discussions

[Benjamin-Loison]

Could also power off the power LED, see FrameworkComputer/EmbeddedController/issues/11. Related to Benjamin-Loison/EmbeddedController/issues/2.