Hi all, On my new HP Pavilion s7510 PC I seem to be missing C states and CPU power management capabilities. Frequency scaling works though. I am not sure if this is even a bug, or an ACPI bug os some sort? I also tried vanilla 2.6.17.13, or noapic/nolapic but to no avail. tvrtko@astrid:~> cat /etc/issue Welcome to SUSE LINUX 10.1 (i586) - Kernel \r (\l). tvrtko@astrid:~> uname -a Linux astrid 2.6.16.21-0.21-default #1 Tue Aug 29 16:42:05 UTC 2006 i686 athlon i386 GNU/Linux tvrtko@astrid:~> cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 36 model name : AMD Turion(tm) 64 Mobile Technology ML-34 stepping : 2 cpu MHz : 800.000 cache size : 1024 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm ts fid vid ttp tm stc bogomips : 1595.08 tvrtko@astrid:~> dmesg | grep powern powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.60.2) powernow-k8: 0 : fid 0xa (1800 MHz), vid 0x4 (1450 mV) powernow-k8: 1 : fid 0x8 (1600 MHz), vid 0x6 (1400 mV) powernow-k8: 2 : fid 0x0 (800 MHz), vid 0x16 (1000 mV) powernow-k8: ph2 null fid transition 0xa tvrtko@astrid:~> cat /proc/acpi/processor/CPU0/info processor id: 0 acpi id: 0 bus mastering control: yes power management: no throttling control: yes limit interface: yes tvrtko@astrid:~> cat /proc/acpi/processor/CPU0/power active state: C1 max_cstate: C8 bus master activity: 00000000 states: *C1: type[C1] promotion[--] demotion[--] latency[000] usage[00000000] tvrtko@astrid:~> dmesg | grep ACPI BIOS-e820: 000000003bef0000 - 000000003bef3000 (ACPI NVS) BIOS-e820: 000000003bef3000 - 000000003bf00000 (ACPI data) ACPI: RSDP (v000 HP-CPC ) @ 0x000f7590 ACPI: RSDT (v001 HP-CPC AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x3bef3040 ACPI: FADT (v001 HP-CPC AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x3bef30c0 ACPI: MCFG (v001 HP-CPC AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x3bef7c00 ACPI: MADT (v001 HP-CPC AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x3bef7b40 ACPI: DSDT (v001 HP-CPC AWRDACPI 0x00001000 MSFT 0x0100000e) @ 0x00000000 ACPI: PM-Timer IO Port: 0x4008 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled) ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1]) 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 low level) ACPI: IRQ0 used by override. ACPI: IRQ2 used by override. ACPI: IRQ9 used by override. Using ACPI (MADT) for SMP configuration information ACPI: bus type pci registered ACPI: Subsystem revision 20060127 ACPI: Interpreter enabled ACPI: Using IOAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) ACPI: Assume root bridge [\_SB_.PCI0] bus is 0 ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 *10 11) ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 10 *11), disabled. ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11) *0, disabled. ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P2P_._PRT] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGP_._PRT] pnp: PnP ACPI init pnp: PnP ACPI: found 9 devices PCI: Using ACPI for IRQ routing apm: overridden by ACPI. ACPI wakeup devices: ACPI: (supports S0 S1 S3 S4 S5) ACPI: PCI Interrupt 0000:00:12.0[A] -> GSI 22 (level, low) -> IRQ 169 ACPI: PCI Interrupt 0000:00:14.1[A] -> GSI 16 (level, low) -> IRQ 177 ACPI: Processor [CPU0] (supports 8 throttling states) ACPI: Thermal Zone [THRM] (40 C) ACPI: Fan [FAN] (on) ACPI: PCI Interrupt 0000:00:14.5[B] -> GSI 17 (level, low) -> IRQ 185 ACPI: PCI Interrupt 0000:00:13.2[A] -> GSI 19 (level, low) -> IRQ 193 ACPI: PCI Interrupt 0000:00:13.0[A] -> GSI 19 (level, low) -> IRQ 193 ACPI: PCI Interrupt 0000:00:13.1[A] -> GSI 19 (level, low) -> IRQ 193 ACPI: PCI Interrupt 0000:02:03.0[A] -> GSI 21 (level, low) -> IRQ 201 ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 20 (level, low) -> IRQ 209 ACPI: Power Button (FF) [PWRF] ACPI: Power Button (CM) [PWRB] ACPI: PCI Interrupt 0000:01:05.0[A] -> GSI 17 (level, low) -> IRQ 185 - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html