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Why does Linux have such a terrible sleep? (programming.dev)

submitted 2 days ago by onlinepersona@programming.dev to c/linux@programming.dev

126 comments fedilink hide all child comments

In 8 hours it uses 20% of the battery. When Windows or Mac are put to sleep, the damn things can sleep for a week! This is the case with Linux on multiple laptops.

Is there some kind of manipulation going by ring -1 that detects Linux is running? Is Linux not respecting some procedure and kissing a step?

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[–] Maestro@fedia.io 50 points 2 days ago (1 children)

Windows doesn't sleep. Ever. Sleep is now just a nickname for Modern Standby, which is just running in low power mode doing a whole bunch of shit. The amount of times I come back to my laptop and it has gotten stuck at a reboot is just embarrassing. I dual-boot and have Grub, so whenever Windows tries to reboot itself it gets stuck.

People have gotten their laptops damaged because they thought they were sleeping and put them in a bag, when Windows decides to try to update itself while the fans are blocked inside the bad. Bam, heat damage.

[–] hendrik@palaver.p3x.de 13 points 2 days ago* (last edited 2 days ago) (2 children)

Shouldn't modern laptops have temperature sensors and just deal with it in some way? I had this happen to me a few times with my old Thinkpad from 12 years ago. Threw it into the backpack in a rush and an hour later I'd pull it out, hot and doing something I didn't want it to do... But it never suffered any kind of damage from that. Was just very annoying.

[–] Maestro@fedia.io 19 points 2 days ago (2 children)

You can't interrupt Windows Update either. So, rock meets hard place?

[–] hendrik@palaver.p3x.de 10 points 2 days ago

Sure 😆 In the meantime I found a solution for all the Windows Update debacle. Bought a newer laptop, went home and just wiped the entire SSD before installing Linux. Now I don't get any dual-boot or Windows update. Also goes to standby 100% of the time. ¯_(ツ)_/¯

[–] dbdr@nord.pub 4 points 2 days ago (1 children)

I would expect overheating protection to occur at the hardware level: first downclock the CPU and forcibly just halt if heat gets critical for too long.

[–] Ghoelian@piefed.social 7 points 2 days ago* (last edited 2 days ago)

Sure but the update can already have done some stuff, leaving your machine in a half-updated and maybe corrupted state. If downclocking doesn't work there really isn't a good solution here.

Edit: oh wait there is, DON'T UPDATE WHEN SLEEPING. And on top of that, just don't update without my explicit approval at all. Thankfully I run linux where, if it's not the default already, it's a config value away.

[–] selokichtli@lemmy.ml 0 points 2 days ago

Also, the failure gets registered forever, for example, in RAID disks you'll never get a 100% healthy disk with such situation.