重装gentoo后，cpu频率调节不了啦[解决]

flies

Processor是Core 2
用的genkernel，内核配置里面CPU Frequency scaling编译进内核了:

CPU Frequency scaling
  [ ]   Enable CPUfreq debugging
  < >   CPU frequency translation statistics
   Default CPUFreq governor (ondemand)  --->  
  -*-   'performance' governor  
   <*>   'powersave' governor  
   <*>   'userspace' governor for userspace frequency scaling  
   -*-   'ondemand' cpufreq policy governor  
  <*>   'conservative' cpufreq governor
     *** CPUFreq processor drivers ***  
  <M>   ACPI Processor P-States driver
   < >   AMD Opteron/Athlon64 PowerNow!
   <M>   Intel Enhanced SpeedStep (deprecated)  
   <*>   Intel Pentium 4 clock modulation   
   *** shared options ***      

cupfreqd编译安装了，acpid也装好了，启动cpufreqd的时候：

* cpufreqd requires the kernel to be configured with CONFIG_CPU_FREQ
* Make sure that the appropiate kernel drivers for your CPU are
* built-in or loaded.
* ERROR: cpufreqd failed to start

cat /etc/src/linux/.config | grep CONFIG_CPU_FREQ:

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 is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# 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

以前用2.6.28内核频率调节没有问题，现在是2.6.32-gentoo-r2

coderoar

查看下有没有下列文件。

1. /sys/devices/system/cpu/cpu0/cpufreq
   
2. /sys/devices/system/cpu/cpu1/cpufreq
   
3. /sys/module/acpi_cpufreq

复制代码

感觉问题还是在内核上。

arch686

<M> ACPI Processor P-States driver


try:

sudo modprobe acpi_cpufreq(or something similar to above)

flies

bingo，就是acpi_cpufreq这个模块没有加载。感谢arch686.