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this post was submitted on 28 Apr 2026
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Uh, it is a bit more involved. The Arch Wiki has a lengthy article on it: https://wiki.archlinux.org/title/Wake-on-LAN
Basically, you'd enable it in your BIOS/firmware. Make sure it's enabled in the network driver. And then you need to figure out a way to send such a magic packet. You can make your router or another device in the network send it. Or do a port-forward or send it through a VPN.
Ah yeah I’m not trying to do all that. Is there a way to keep your computer almost asleep just waiting for a signal?
Laptops are designed to be fairly power-efficient. I don't know what yours does. But mine goes down to only a very few watts if idle and the display is switched off. There's the Linux tool "powertop" which shows power consumption and it can also tune most components to go to low power. Sometimes there's also a power profile setting. That shouldn't be on "performance" or anything like that. I don't think Linux has more to offer, except sleep with wake-on-lan.
Thanks! I’ll do some experimentation.