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Laptop battery goes flat, when powered off, only on Debian (lemmy.ml)
submitted 3 weeks ago* (last edited 2 weeks ago) by makingStuffForFun@lemmy.ml to c/linuxhardware@programming.dev
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Hi all,

I had this laptop (Lenovo Carbon X1 Gen 6), and when it had Debian, it would just go flat on sleep, and even when powered off. So strange. I checked all BIOS settings etc, but could never figure it out.

I moved it to Fedora, and it was perfect. Battery life was boosted like crazy, acted as it was meant to.

However, I have tomove away from Fedora, due to them dropping X11 (it's an accessibility issue I'm facing with my tools) and I forgot about said issue with Debian.

Back on Debian now, woke up, powered on laptop, which was fully charged last night, and it's flat again.

What is it, that Debian is doing differently, that is making it go flat, when powered off?

Please note, I am doing a proper shutdown. Not just closing lid, sleep, hybernate, etc.

Any advice greatly appreciated. Thanks so much!

UPDATE: I booted into a fedora live disk, and shutdown. This time the battery did not go flat at all when shutdown, indicating that it is absolutely debian related, not BIOS or anything else.

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[-] sneezycat@sopuli.xyz 1 points 2 weeks ago

the only sensible conclusion is that shutting down the laptop in debian doesn't turn it off, there are no other explanations.

I mean, there are other explanations, like having Wake on Lan activated. But yeah it is very suspicious. It shouldn't drain that fast, even with WoL.

[-] makingStuffForFun@lemmy.ml 2 points 2 weeks ago

Yes, I have checked all those settings in the BIOS, and they are fine. I have no idea where to go now.

[-] makingStuffForFun@lemmy.ml 2 points 2 weeks ago

OK, a little bit of an update. I booted into the fedora live USB disk. I then shut down from there. A day later, and the battery is still on 98%. This shows that it is actually debian causing the issue, not a system issue like the BIOS or similar. Now, just to try and figure out what it is with Debian and shutdown.

[-] makingStuffForFun@lemmy.ml 2 points 1 week ago

Just an update, for interests sake, for those that helped me. Get this, it's if I have the laptop plugged into power as I turn it off. I then unplug it, and it drains like crazy when OFF. But, if I unplug power, then power down, it keeps its battery beautifully. How strange.

[-] sneezycat@sopuli.xyz 1 points 1 week ago

Jesus Christ, there is something very wrong going on in there lmao. So, if you just turn it off (no unplugging) I'm guessing it's chugging your electricity for no reason? Does it have any logs of something it could be doing while it's "off"?

[-] makingStuffForFun@lemmy.ml 2 points 1 week ago

Nope, nothing. And only on Debian. It never did this on Fedora. Madness, but, I have no time to further spend on it. So, unplug, send shutdown signal, and happy life. haha, weird!

this post was submitted on 16 Jul 2025
18 points (100.0% liked)

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