System: AMD Athlon(tm) 64 X2 Dual Core Processor 5600+
I recently upgraded from 2.6.23 to 2.6.31-r6 following the udev upgrade (the latest version - 146-r1 needs kernel version >= 2.6.25). Since the upgrade the frequency scaling modules fails to load at startup, but I can load it manually later by: modprobe powernow-k8 More information: $ rc-update -s . . . powernowd | default $ grep -i powernow /var/log/messages Dec 14 08:31:24 nadav_home kernel: ACPI: SSDT 00000000dfff75c0 002CC (v01 PTLTD POWERNOW 00000001 LTP 00000001) Dec 14 08:31:24 nadav_home rc-scripts: ERROR: powernowd failed to start Relevant lines from /usr/src/linux/.config # # Power management and ACPI options # CONFIG_ARCH_HIBERNATION_HEADER=y CONFIG_PM=y # CONFIG_PM_DEBUG is not set CONFIG_PM_SLEEP_SMP=y CONFIG_PM_SLEEP=y CONFIG_SUSPEND=y CONFIG_SUSPEND_FREEZER=y CONFIG_HIBERNATION_NVS=y CONFIG_HIBERNATION=y CONFIG_PM_STD_PARTITION="" CONFIG_ACPI=y CONFIG_ACPI_SLEEP=y CONFIG_ACPI_PROCFS=y CONFIG_ACPI_PROCFS_POWER=y CONFIG_ACPI_SYSFS_POWER=y # CONFIG_ACPI_PROC_EVENT is not set # CONFIG_ACPI_AC is not set # CONFIG_ACPI_BATTERY is not set CONFIG_ACPI_BUTTON=m CONFIG_ACPI_VIDEO=m CONFIG_ACPI_FAN=y CONFIG_ACPI_DOCK=y CONFIG_ACPI_PROCESSOR=y CONFIG_ACPI_HOTPLUG_CPU=y CONFIG_ACPI_THERMAL=m # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set # CONFIG_ACPI_PCI_SLOT is not set CONFIG_X86_PM_TIMER=y CONFIG_ACPI_CONTAINER=y # CONFIG_ACPI_SBS is not set # # CPU Frequency scaling # CONFIG_CPU_FREQ=y CONFIG_CPU_FREQ_TABLE=y # CONFIG_CPU_FREQ_DEBUG is not set # CONFIG_CPU_FREQ_STAT is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=y CONFIG_CPU_FREQ_GOV_POWERSAVE=y CONFIG_CPU_FREQ_GOV_USERSPACE=y CONFIG_CPU_FREQ_GOV_ONDEMAND=y CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y # # CPUFreq processor drivers # CONFIG_X86_ACPI_CPUFREQ=m CONFIG_X86_POWERNOW_K8=m # CONFIG_X86_SPEEDSTEP_CENTRINO is not set # CONFIG_X86_P4_CLOCKMOD is not set # # shared options # # CONFIG_X86_SPEEDSTEP_LIB is not set CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_CPU_IDLE_GOV_MENU=y Any idea how can I fix it? Nadav