Score:0

Fan speed 0 after upddate from ubuntu 21.04 to 21.10

br flag

I update ubuntu from 21.04 to 21.10, and then not working laptop fan (Lenovo P15s gen 2). Laptop is very hot, but fan not started. Any idea, what i must repair, instal or update?

Jiří Nový avatar
br flag
Problem is only in linux. After turn on laptop, fan normally work. But after start ubuntu, fan is always stopped.
ChanganAuto avatar
us flag
Can you try a 21.10 live session? If the symptom persists then there's something wrong with the new kernel but if not I suggest installing fresh.
Jiří Nový avatar
br flag
Fan not working if normaly start ubuntu 21.10 with linux 5.13.0-22-generic or linux 5.11.0-41-generic. Now i donwload ubuntu 21.10, and run it from usb stick, but fan not working.
ChanganAuto avatar
us flag
So, if the problem is the same with the 21.10 kernel branch and the old kernel from 21.04 then it's probably hardware. The failure may have coincided with the release upgrade but wasn't caused by it.
Jiří Nový avatar
br flag
I dowload ubuntu 21.04, and run it from usb stick, but fan not working. Before update ubuntu was updated BIOS, maybe is problem with new version BIOS. I try dowload oldest version BIOS and test it.
Jiří Nový avatar
br flag
Problem was in in new version of BIOS, not in upgrade to new version ubuntu. In versions 1.46 (N34UL12W) of UEFI BIOS fan not working (I don't know what the problem is). After donwgrade to version 1.44 (N34UL11W), fun work normaly.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.