Bug #1867

it(4) motherboard and fan problems

Added by tuxillo almost 6 years ago. Updated about 5 years ago.

Status:NewStart date:
Priority:NormalDue date:
Assignee:-% Done:


Target version:-



My Asus M2N4-SLI motherboard equiped with an Athlon X2 has an it(4) hardware
monitor chip.

It seems that it stops the fan every 10-12 seconds and restart it every 7-8
seconds or so. I've tested in others Operating Systems I have installed on that
machine (linux) and the fan is not stopping at any time, so I think there must
be any issue under DFBSD.


DragonFly dfbsdx86 2.7-DEVELOPMENT DragonFly v2.7.3.1251.ge2c70-DEVELOPMENT #2:
Wed Oct 6 22:38:37 CEST 2010
antonioh@dfbsdx86:/usr/obj/home/source/dfbsd/sys/GENERIC_SMP i386

Id Refs Address Size Name
1 6 0xc0100000 77461c kernel
2 1 0xc0875000 6dc34 acpi.ko
3 1 0xc08e3000 11b7c ahci.ko
4 1 0xc08f5000 9334 ehci.ko

dfbsdx86# dmesg | grep it0


#1 Updated by tuxillo almost 6 years ago

I've left out all the it device lines in my kernel configuration file, thus
avoiding it(4) to be included and the fan did NOT stop at all.

#2 Updated by tuxillo over 5 years ago

Can anyone with it(4) also check if the fan stops and start like in a loop?

#3 Updated by alexh about 5 years ago

I can have a look at that if you remind me on some weekend, it's probably
related to bad PWM.


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