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wlr-dpms - 'xset dpms on|off' for wlroots compositors (git.sr.ht)
submitted 9 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 9 months ago

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

[-] dsemy@lemm.ee 3 points 9 months ago

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

[-] lalo@discuss.tchncs.de 5 points 9 months ago

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 9 months ago

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

this post was submitted on 28 Jan 2024
24 points (96.2% liked)

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