Subject: Dell D510 fan always blowing
To: NetBSD/current <>
From: Joel CARNAT <>
List: current-users
Date: 03/02/2007 00:06:48
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I have installed NetBSD 4.0_BETA2 on a Dell D510.
About 15min after the boot, the fan starts to blow.
I think the fan has 3 steps NONE/SLOW/FAST. When the fan goes into
that SLOW level, it never goes down anymore.

I have compiled a light-GENERIC (with sysutils/adjustkernek) kernel with
ACPI and I am running estd to keep CPU as slow as possible.

Here're a few infos about my config:
#  dmesg | grep cpu
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel Pentium M (Dothan) (686-class), 1729.16 MHz, id 0x6d8
cpu0: features
cpu0: features afe9fbff<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features afe9fbff<FXSR,SSE,SSE2,SS,TM,SBF>
cpu0: features2 180<EST,TM2>
cpu0: "Intel(R) Pentium(R) M processor 1.73GHz"
cpu0: I-cache 32 KB 64B/line 8-way, D-cache 32 KB 64B/line 8-way
cpu0: L2 cache 2 MB 64B/line 8-way
cpu0: using thermal monitor 1
cpu0: Enhanced SpeedStep (1356 mV) 1733 MHz
cpu0: Enhanced SpeedStep frequencies available (MHz): 1733 1333 1067 800
cpu0: calibrating local timer
cpu0: apic clock running at 133 MHz
cpu0: 64 page colors

#  dmesg | grep -i acpi
cpu0: features afe9fbff<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
acpi0 at mainbus0: Advanced Configuration and Power Interface
acpi0: using Intel ACPI CA subsystem version 20060217
acpi0: X/RSDT: OemId <DELL  , D05    ,27d50c1b>, AslId <ASL ,00000061>
acpi0: SCI interrupting at int 9
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
ACPI-Fast 24-bit timer
mpacpi: could not get bus number, assuming bus 0
ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
ACPI Object Type 'Processor' (0x0c) at acpi0 not configured
acpiacad0 at acpi0 (ACPI0003): ACPI AC Adapter
acpibat0 at acpi0 (PNP0C0A-1): ACPI Battery (Control Method)
acpibat1 at acpi0 (PNP0C0A-2): ACPI Battery (Control Method)
acpilid0 at acpi0 (PNP0C0D): ACPI Lid Switch
acpibut0 at acpi0 (PNP0C0C): ACPI Power Button
acpibut1 at acpi0 (PNP0C0E): ACPI Sleep Button
PNP0C01 at acpi0 not configured
PNP0A03 at acpi0 not configured
PNP0C01 at acpi0 not configured
PNP0C01 at acpi0 not configured
pckbc0 at acpi0 (PNP0F13): aux port
pckbc1 at acpi0 (PNP0303): kbd port
PNP0B00 at acpi0 not configured
attimer0 at acpi0 (PNP0100): AT Timer
pcppi0 at acpi0 (PNP0800)
PNP0C01 at acpi0 not configured
PNP0000 at acpi0 not configured
PNP0200 at acpi0 not configured
npx0 at acpi0 (PNP0C04)
com0 at acpi0 (PNP0501)
lpt0 at acpi0 (PNP0401)
PNP0C0F at acpi0 not configured
PNP0C0F at acpi0 not configured
PNP0C0F at acpi0 not configured
PNP0C0F at acpi0 not configured
acpitz0 at acpi0: ACPI Thermal Zone
acpitz0: unable to get polling interval; using default of 30.0s
acpitz0: passive cooling mode only
acpitz0: critical 102.0C
acpibat0: battery info: Panasonic, LION, DELL 4M0106, 4001

# sysctl machdep.est.frequency = 800
machdep.est.frequency.current = 800
machdep.est.frequency.available = 1733 1333 1067 800

# envstat -r
    acpiacad0 connected
       acpibat0 present
    acpibat0 design cap:      4.700 Ah
 acpibat0 last full cap:      4.700 Ah
    acpibat0 technology:          1
acpibat0 design voltage:     11.100 V
      acpibat0 warn cap:      0.470 Ah (10.00%)
       acpibat0 low cap:      0.142 Ah ( 3.02%)
       acpibat0 voltage:     12.464 V
        acpibat0 charge:      4.700 Ah (100.00%)
    acpitz0 temperature:     34.500 degC

I think that when it was running Windows, the fan went back to the
"NONE" state when the computer was idle-ing.

Do you think that this is hardware related or is there something in
NetBSD that I forgot to setup to keep this laptop it as quiet as


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