Ticket #1453 (closed task)
Opened 7 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.
