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Re: Laptop fan freaks out on boot

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On Fri, Jun 14, 2024 at 10:00:26PM +0200, jpeter17359549@tutanota.com wrote:

[Setting Mail-Followup-To to debian-user, as Felipe pointed out]

[My question was, for those confused by top posting: at
which point at boot the fan speeds up]

> Yes, I am using Debian 12.5. It's a new install on a Dell laptop, which previously ran Windows, and it never had any cooling issues.
> 
> The fan runs at very high RPM (probably on maximum) for a couple of seconds on boot.
> 
> It seems to happen at the point where it reaches this line:
> [OK] Reached target sound.target - Sound card.
> 
> The fan otherwise behaves normally, and sound plays fine, except XFCE event sounds don't work (log in/out, emptying trash, etc).

OK, the Linux kernel has definitely taken over at that point.

I asked the question because I've observed a similar behaviour
(mainly on desktops), but this happens much earlier, while
the BIOS is still in charge, before the the kernel has taken
over.

I'm not very knowledgeable on what happens when (especially
if systemd is involved, but you could try to look into your
boot log with "journalctl -b". Perhaps you find out what is
happening around the start of sound.target.

Cheers
-- 
t

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Re: Laptop fan freaks out on boot Tomas <tomas@tuxteam.de> - 2024-06-15 07:10 +0200
  Re: Laptop fan freaks out on boot jpeter17359549@tutanota.com - 2024-06-16 04:30 +0200
    Re: Laptop fan freaks out on boot Tomas <tomas@tuxteam.de> - 2024-06-16 06:50 +0200
    Re: Laptop fan freaks out on boot Hans <hans.ullrich@loop.de> - 2024-06-16 17:20 +0200

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