this post was submitted on 28 May 2025
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I have a laptop that I dual boot Windows 11 and Ubuntu on.
If I leave the Windows desktop idle for >20 minutes the fans will almost always randomly flare up even though I'm doing nothing. On Ubuntu, the desktop usually stays silent, or sometimes the fans come on a little (probably due to bloated browser apps) but never flare up the way it does on Windows.
Again, the most common problem in those cases are crappy drivers/fan curves. I have a laptop with W11 on it and fix/maintain laptops for friends as well and this is not an issue with any of them. The only time I had this problem was with a specific laptop.
Honestly, of all of the things you could criticize about windows (and there are lots), this is the one thing that is simply not an inherent OS problem.
I should test this. I normally set an aggressive fan curve so the CPU doesn't overheat, and because I game on my laptop I use the custom fan profile instead of the default quiet one. I should try using a different fan profile when not gaming.