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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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wlr-dpms - 'xset dpms on|off' for wlroots compositors (git.sr.ht)

submitted 10 months ago by dsemy@lemm.ee to c/linux@lemmy.ml

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I've been migrating my setup to Wayland the past few days, and I couldn't figure out any way to turn off my displays without affecting the layout of the compositor (river).

As it turns out, there is a wlroots-specific protocol (wlr_output_power_manager_v1) for this purpose, but the only implementation I could find was a tool which doesn't work exactly how I want and is based on Rust, a language I'm unfamiliar with (so I didn't feel like modifying it).

Since I wanted to learn more about how Wayland works, and get more experience with C programming, I decided to build a new (super simple) tool, 'wlr-dpms'.

Note that this tool only turns monitors on or off manually, it doesn't implement any functionality to turn a monitor on when there is activity. You can use a resume command with 'swayidle' to implement this.

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[–] lalo@discuss.tchncs.de 5 points 10 months ago (1 children)

Looks similar to https://git.sr.ht/~leon_plickat/wlopm/

[–] dsemy@lemm.ee 3 points 10 months ago (1 children)

Damn, I searched for two days and didn't come across this.

[–] lalo@discuss.tchncs.de 5 points 10 months ago (1 children)

You said you used river, so I've checked their wiki https://github.com/riverwm/river/wiki/Recommended-Software#output-configuration

Maybe you can add your tool there as well.

[–] dsemy@lemm.ee 3 points 10 months ago

Wow, I have no idea how I missed that, I literally read that page today.