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无法调整频率，总是跳到最低

tag-icon • tag-icon cpu cpufreq
无法调整频率，总是跳到最低

标题基本解释了这一点。我知道这不是硬件问题。CPU 是 Intel Core Duo

输出cpufreq-info：

cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], please.
analyzing CPU 0:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.40 GHz
  available frequency steps: 2.40 GHz, 2.40 GHz, 1.60 GHz, 800 MHz
  available cpufreq governors: conservative, ondemand, userspace, powersave, performance
  current policy: frequency should be within 800 MHz and 800 MHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.40 GHz:-nan%, 2.40 GHz:-nan%, 1.60 GHz:-nan%, 800 MHz:-nan%  (1)
analyzing CPU 1:
  driver: acpi-cpufreq
  CPUs which run at the same hardware frequency: 1
  CPUs which need to have their frequency coordinated by software: 1
  maximum transition latency: 10.0 us.
  hardware limits: 800 MHz - 2.40 GHz
  available frequency steps: 2.40 GHz, 2.40 GHz, 1.60 GHz, 800 MHz
  available cpufreq governors: conservative, ondemand, userspace, powersave,     performance
  current policy: frequency should be within 800 MHz and 800 MHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency is 800 MHz.
  cpufreq stats: 2.40 GHz:-nan%, 2.40 GHz:-nan%, 1.60 GHz:-nan%, 800 MHz:-nan%  (1)

我需要我的 CPU 恢复到 2.4 GHz 的水平。有人能帮我吗？

答案1

显然，戴尔使用了一种调节 CPU 功率的芯片。

如果使用未经授权的充电器，戴尔电脑将阻止 CPU 供电。这是一种迫使您只购买 OEM 充电器的糟糕方法。

要修复此问题，必须编辑/etc/default/grub文件。在行上GRUB_CMDLINE_LINUX_DEFAULT，在结束之前processor.ignore_ppc=1添加。splash"

（前任：GRUB_CMDLINE_LINUX_DEFAULT="quiet splash processor.ignore_ppc=1"）

（来源）

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