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What are the commands to increase and decrease the brightness level in Ubuntu 17.10? It seems like xrandr and xbacklight does not work with Wayland.

I can still write the value I want on /sys/class/backlight/intel_backlight/brightness

for example:

sudo tee /sys/class/backlight/intel_backlight/brightness <<<500

But I'm trying to find the actual commands and create two keyboard shortcuts with it to increase or decrease my brightness level.

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The utility "brightnessctl" is in the software repositories (as of Ubuntu 18.04 at least) and works with wayland.

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    Yes, brightnessctl is working in Wayland but it's not ideal for keyboard shortcut as you should run this program with root privileges. Any workaround on that?
    – Omid Khalili
    Jul 11, 2018 at 2:13

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