Very cool, had no idea this was even possible. Is there anything like this for Linux?
The same author also made some kind of UI for it but I haven't used it so I don't know how it looks or performs: https://github.com/rockowitz/ddcui
For gnome there is https://extensions.gnome.org/extension/2645/brightness-contr... This addon adds brightness sliders in the power menu for your external monitors.
Wow, color me surprised. That doesn't sound like a desktop Linux app at all :)
>I once almost bricked my LG monitor, because I accidentally locked the hardware buttons on my monitor, via an undocumented manufacturer specific option.
Reminds of the good old days of late 90s / early 2000s desktop Linux, when the wrong video timing settings in your XFree86 config could make your CRT monitor (almost literally) explode.
But I'm sure 2022 will be "the year of Linux on the desktop", finally :)
With the Steamdeck running Arch Linux, I'm sure you're right. :)