Ticket #1453 (closed task)

Opened 8 years ago

W83697HF / BIOS no longer controls fan speed (Examined/Solved - 2.8.0 with pwm fix in CVS (tag 1.105), kernel: SuSE 2.4.21-144 recompiled)

Reported by: contact Owned by: somebody
Priority: minor Milestone:
Component: hardware Version:
Keywords: Cc:

Description

When not using lm-sensors; the BIOS controls fan speed based on load, and seems

to do a good job of it, generally this is a very quiet machine.

After loading w83781d and i2c-isa, the fans spin at full speed.

I patched my lm-sensors up to version 1.105 of w83781d, containing a pwm fix.

This allows me to manually adjust the fan speed (previously not possible),

although only "8 1" and "4 1" really seem to have any effect when echo'ed to

/proc/sys/dev/sensors/w83697hf-isa-0290/pwm2.

What I'd like to know is if I can monitor speed and temperature without

disrupting the BIOS' control over fan speeds? Or is the only way some

script/daemon?

Hardware : MSI Hermes 650-P, monitoring chip W83697HF. --- You can use modprobe w83781d init=0 which will disable initialization

of the chip.

Or use CVS/2.8.2 which has the initialization removed.

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