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I have a laptop with Artix Linux on it that I'm using as a web server. I want to keep it minimalist, w/o graphical environment and only the absolute necessary software.

My problem is I still don't know how to turn off/on the display (to save energy) when I'm not interacting with it (which I do very rarely).

I am aware of these posts:

But they either talk about solutions that work for a graphical environment or they use some additional software (vbetool) that I'm not even able to install. It would also be very cool If I could turn the display off/on through ssh

Abdelhakim AKODADI
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  • Why can't you install `vbetool`? It seems to be the solution. Since it's a web server it has got access to the Internet - although you might be blocking outbound traffic. You can also download the package elsewhere, copy it to laptop and install it . – Krackout Oct 09 '21 at 07:15

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Nevermind, I found a page in ArchWiki that explains everything. No additional software is needed. All I have to do is change the value in /sys/class/backlight/intel_backlight/brightness to 0 to turn the display off. To turn it back on, I can use any value grater than 0. The maximum value can be found in /sys/class/backlight/intel_backlight/max_brightness.

Note that the intel_backlight part is hardware dependent. It might be something else, like acpi_video0 on a different machine.

Abdelhakim AKODADI
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