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Why is sleep so hard for laptops? (lemmy.world)
submitted 1 year ago by to c/linux@lemmy.world
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And it's crap across the OSes. On Linux laptops don't wake up from sleep, on Windows they keep waking up when nobody asks for it.

In our home office room there's three laptops. My private one running Fedora, my work PC that sadly runs Windows and my wife's laptop also running Windows.

My work laptop and my wife's laptop keep waking up wasting electricity, and my private laptop needs a hard reset to wake it up every second time.

That feature should be stupid simple, yet it doesn't work across the board.

Rant over.

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[–] 7 points 1 year ago (3 children)

It's waking up because another device on the network (probably router) is pinging it

Disable "Wake on Magic Packet" and the Windows sleep issue goes away

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  • [–] 1 point 1 year ago

    Yeah, but classic Windows move: it'll work for a while and then it will randomly stop working.

    This was one of the big things that pushed me to Linux. Not feeling like I was the one in control of my PC.

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  • [–] 2 points 1 year ago (1 child)

    This kind of stuff must happen at hardware level… wake on lan is in hardware.

    Ethernet cards keep in getting packets (arp at very least) even if they are not directed for them. If the OS needs to check all packages it would be always on

    That said… wake on lan is also a waste of energy if you don’t need (why powering the Ethernet cards?)

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  • [–] 3 points 1 year ago

    The setting I am suggesting gets disabled keeps the card powered during sleep so Wake on LAN can work on a hardware level.

    The OS isn't checking the packets. The NIC gets a packet and wakes up the OS.

    I am not defending it, just explaining how to stop it from happening. A lot of people who know what Wake On LAN is don't know about Wake On Magic Packet

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