The laptop runs hotter in linux(slackware 12). ls /proc/acpi/fan, notting inside, some people already report this problem. Below the dmesg information regarding ACPI. BIOS-e820: 000000007f690000 - 000000007f6a0000 (ACPI data) BIOS-e820: 000000007f6a0000 - 000000007f700000 (ACPI NVS) ACPI: RSDP 000F72F0, 0014 (r0 LENOVO) ACPI: RSDT 7F699A9A, 004C (r1 LENOVO TP-62 6040000 ONEL 0) ACPI: FACP 7F69FC78, 0074 (r1 LENOVO CALISTGA 6040000 LNNO 1) ACPI: DSDT 7F69A6F2, 5586 (r1 LENOVO CALISTGA 6040000 MSFT 100000E) ACPI: FACS 7F6A0FC0, 0040 ACPI: APIC 7F69FCEC, 0068 (r1 LENOVO APIC 6040000 LNVO 1) ACPI: HPET 7F69FD54, 0038 (r1 LENOVO HPET 6040000 LNVO 1) ACPI: MCFG 7F69FD8C, 003C (r1 LENOVO MCFG 6040000 LNVO 1) ACPI: TCPA 7F69FDC8, 0032 (r1 LENOVO ^A 6040000 NVO^A 0) ACPI: SLIC 7F69FDFA, 0176 (r1 LENOVO TP-62 6040000 LNVO 1) ACPI: APIC 7F69FF70, 0068 (r1 PTLTD APIC 6040000 LTP 0) ACPI: BOOT 7F69FFD8, 0028 (r1 PTLTD $SBFTBL$ 6040000 LTP 1) ACPI: SSDT 7F69A4E8, 020A (r1 SataRe SataAhci 1000 INTL 20050624) ACPI: SSDT 7F699AE6, 04F6 (r1 PmRef CpuPm 3000 INTL 20050624) ACPI: BIOS bug: multiple APIC/MADT found, using 0 ACPI: If "acpi_apic_instance=2" works better, notify linux-acpi@vger.kernel.org ACPI: PM-Timer IO Port: 0x1008 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1]) ACPI: IOAPIC (id[0x01] 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 ACPI: Core revision 20070126 ACPI: bus type pci registered ACPI: EC: Look up EC in DSDT ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 ACPI: System BIOS is requesting _OSI(Linux) ACPI: If "acpi_osi=Linux" works better, ACPI: Interpreter enabled ACPI: (supports S0 S3 S4 S5) ACPI: Using IOAPIC for interrupt routing ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 ACPI: PCI Root Bridge [PCI0] (0000:00) PCI quirk: region 1000-107f claimed by ICH6 ACPI/GPIO/TCO ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP03._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIB._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 10 12 14 15) *11 ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 7 11 12 14 15) *10 ACPI: PCI Interrupt Link [LNKC] (IRQs 1 *3 4 5 6 7 10 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 7 11 12 14 15) *10 ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 *4 5 6 7 10 12 14 15) ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 7 11 12 14 15) *0, disabled. ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 *7 10 12 14 15) ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 *5 6 7 11 12 14 15) pnp: PnP ACPI init ACPI: bus type pnp registered pnp: PnP ACPI: found 11 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 17 (level, low) -> IRQ 16 ACPI: PCI Interrupt 0000:00:1c.2[C] -> GSI 18 (level, low) -> IRQ 17 ACPI: PCI Interrupt 0000:00:1f.1[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: PCI Interrupt 0000:0a:01.0[A] -> GSI 22 (level, low) -> IRQ 19 ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 20 ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 20 ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: bus type pnp registered pnp: PnP ACPI: found 11 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 17 (level, low) -> IRQ 16 ACPI: PCI Interrupt 0000:00:1c.2[C] -> GSI 18 (level, low) -> IRQ 17 ACPI: PCI Interrupt 0000:00:1f.1[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: PCI Interrupt 0000:0a:01.0[A] -> GSI 22 (level, low) -> IRQ 19 ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 20 ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 20 ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 17 ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 16 (level, low) -> IRQ 21 ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 19 ACPI: Power Button (FF) [PWRF] ACPI: Lid Switch [LID0] ACPI: Sleep Button (CM) [SLPB] ACPI: SSDT 7F69A275, 01EA (r1 PmRef Cpu0Ist 3000 INTL 20050624) ACPI: SSDT 7F699FDC, 0214 (r1 PmRef Cpu0Cst 3001 INTL 20050624) ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3]) ACPI: SSDT 7F69A45F, 0089 (r1 PmRef Cpu1Ist 3000 INTL 20050624) ACPI: SSDT 7F69A1F0, 0085 (r1 PmRef Cpu1Cst 3000 INTL 20050624) ACPI: CPU1 (power states: C1[C1] C2[C2] C3[C3]) ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 18 (level, low) -> IRQ 17 ACPI: PCI Interrupt 0000:00:1f.3[B] -> GSI 19 (level, low) -> IRQ 18 ACPI: Thermal Zone [TZS0] (39 C) ACPI: Thermal Zone [TZS1] (43 C) ACPI: Video Device [VGA] (multi-head: yes rom: no post: no) ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) ACPI: AC Adapter [ADP1] (off-line) ACPI: PCI Interrupt 0000:0a:07.0[A] -> GSI 20 (level, low) -> IRQ 22 ACPI: PCI Interrupt 0000:0a:01.1[B] -> GSI 22 (level, low) -> IRQ 19 ACPI: Battery Slot [BAT0] (battery present)
This is a duplication of bug #8713. >ls /proc/acpi/fan, notting inside this is because that no ACPI fan control available on this machine. I think the fan is probably controlled by bios or hwmon. If you got a overheat problem, please try a mainline kernel with CONFIG_HWMON and all the drivers set/cleared to see if there is any difference.
Ricardson, please reopen it if you still have some questions. *** This bug has been marked as a duplicate of bug 8713 ***