fan problem on new mainboard

[Robert Lemmen <robertle@semistable.com>]

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hi folks,

i got a new mainboard, an asrock conroe1333 (intel socket 775 thing). so
far everything is nice except the cpu fan, which is always spinning at
top speed. from what i understand, it should be possible to change this
with acpi, or even make it spin depending on the cpu temperature.
(right?) acpi on this box however doesn't seem to do this, i have got no
entries in /proc/acpi/fan or .../thermal_zone. i googled around a bit
and thought it might be the dsdt, so i de- and recompiled it, a few
warnings but no errors. i am running out of ideas how to go on, so if
anyone could give me a hint on how to get this working, or where to
look, i'd appreciate it. the kernel is 2.6.22 (amd64), and the output of
dmesg | grep -i acpi is attached. if you need any other info, holler!

oh, and i tried with and without the acpi_os_name line, of course.

thanks  robert

Command line: root=/dev/mapper/cryptroot cryptopts=source=/dev/md0 acpi_os_name="Microsoft Windows XP" ro 
 BIOS-e820: 000000007f7b0000 - 000000007f7c0000 (ACPI data)
 BIOS-e820: 000000007f7c0000 - 000000007f7f0000 (ACPI NVS)
ACPI: RSDP 000F91B0, 0014 (r0 ACPIAM)
ACPI: RSDT 7F7B0000, 0038 (r1 A_M_I  OEMRSDT   5000702 MSFT       97)
ACPI: FACP 7F7B0200, 0084 (r2 A M I  OEMFACP  12000601 MSFT       97)
ACPI: DSDT 7F7B0440, 4B0B (r1  ASR18 ASR18032       32 INTL  2002026)
ACPI: FACS 7F7C0000, 0040
ACPI: APIC 7F7B0390, 006C (r1 A_M_I  OEMAPIC   5000702 MSFT       97)
ACPI: MCFG 7F7B0400, 003C (r1 A_M_I  OEMMCFG   5000702 MSFT       97)
ACPI: OEMB 7F7C0040, 0046 (r1 A_M_I  AMI_OEM   5000702 MSFT       97)
ACPI: HPET 7F7B4F50, 0038 (r1 A_M_I  OEMHPET   5000702 MSFT       97)
ACPI: PM-Timer IO Port: 0x808
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
ACPI: HPET id: 0x8086a201 base: 0xfed00000
Using ACPI (MADT) for SMP configuration information
Kernel command line: root=/dev/mapper/cryptroot cryptopts=source=/dev/md0 acpi_os_name="Microsoft Windows XP" ro 
ACPI: Core revision 20070126
ACPI: Overriding _OS definition to 'Microsoft Windows XP'
ACPI: bus type pci registered
ACPI: Interpreter enabled
ACPI: (supports S0 S1 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P4._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P5._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 *5 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 14 *15)
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp: ACPI device : hid PNP0A08
pnp: ACPI device : hid PNP0C01
pnp: ACPI device : hid PNP0200
pnp: ACPI device : hid PNP0B00
pnp: ACPI device : hid PNP0800
pnp: ACPI device : hid PNP0C04
pnp: ACPI device : hid PNP0510
pnp: ACPI device : hid PNP0700
pnp: ACPI device : hid PNP0401
pnp: ACPI device : hid PNP0C02
pnp: ACPI device : hid PNP0103
pnp: ACPI device : hid INT0800
pnp: ACPI device : hid PNP0C02
pnp: ACPI device : hid PNP0C02
pnp: ACPI device : hid PNP0303
pnp: ACPI device : hid PNP0F03
pnp: ACPI device : hid PNP0501
pnp: ACPI device : hid PNP0C02
pnp: ACPI device : hid PNP0C02
pnp: ACPI device : hid PNP0C01
pnp: PnP ACPI: found 20 devices
ACPI: ACPI bus type pnp unregistered
PCI: Using ACPI for IRQ routing
ACPI: RTC can wake from S4
ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
ACPI: PCI Interrupt 0000:00:1c.1[B] -> GSI 17 (level, low) -> IRQ 17
ACPI Exception (processor_core-0781): AE_NOT_FOUND, Processor Device is not present [20070126]
ACPI Exception (processor_core-0781): AE_NOT_FOUND, Processor Device is not present [20070126]
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 23
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 19
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18
ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 16 (level, low) -> IRQ 16
ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 23
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 17 (level, low) -> IRQ 17
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
ACPI: PCI Interrupt 0000:00:1f.3[B] -> GSI 19 (level, low) -> IRQ 19
parport_pc 00:08: reported by Plug and Play ACPI
ACPI: Power Button (FF) [PWRF]
ACPI: Power Button (CM) [PWRB]
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 16

-- 
Robert Lemmen                               http://www.semistable.com 

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