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CPU没有自动调频造成发热巨大的解决办法
Experiences and Insight968 views ·23 replies
Tofloor
joo
deepin^3
2020-09-13 09:48
Author
本帖最后由 joo_tsao 于 2020-9-13 18:50 编辑

系统默认安装的情况下CPU调频是高性能模式,这会造成发热巨大,论坛有各种各样的解决方法。
1、关闭intel_pstate,这种方法缺点很明显:固定在GRUB,无法随时更改配置;最重要的是intel的CPU通过intel_pstate进行调频是最优的。
2、安装tlp替换laptop mode tool,如果安装tlp需要卸载laptop mode tool,就会破坏深度的节能配置,这可能不是想要的结果。
3、cpupowergui这是很酷的工具,也十分管用,我也十分喜欢,但时间一长,审美疲劳,我更希望有系统级的标准解决方案。

下面我参考了其他发行版的做法,这才是标准的解决方案。

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joo
deepin^3
2020-09-13 10:12
#1
本帖最后由 joo_tsao 于 2020-9-15 15:15 编辑

1、安装cpupower
  1. sudo apt-get install linux-cpupower
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2、查看cpu有效的调速器
  1. sudo cpupower -c all frequency-info
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以我的电脑为例,你们参考自己的查看的信息。
  1. analyzing CPU 0:
  2.   driver: intel_pstate
  3.   CPUs which run at the same hardware frequency: 0
  4.   CPUs which need to have their frequency coordinated by software: 0
  5.   maximum transition latency:  Cannot determine or is not supported.
  6.   hardware limits: 400 MHz - 2.80 GHz
  7.   available cpufreq governors: performance powersave
  8.   current policy: frequency should be within 400 MHz and 2.80 GHz.
  9.                   The governor "powersave" may decide which speed to use
  10.                   within this range.
  11.   current CPU frequency: Unable to call hardware
  12.   current CPU frequency: 1.88 GHz (asserted by call to kernel)
  13.   boost state support:
  14.     Supported: yes
  15.     Active: yes
  16. analyzing CPU 1:
  17.   driver: intel_pstate
  18.   CPUs which run at the same hardware frequency: 1
  19.   CPUs which need to have their frequency coordinated by software: 1
  20.   maximum transition latency:  Cannot determine or is not supported.
  21.   hardware limits: 400 MHz - 2.80 GHz
  22.   available cpufreq governors: performance powersave
  23.   current policy: frequency should be within 400 MHz and 2.80 GHz.
  24.                   The governor "powersave" may decide which speed to use
  25.                   within this range.
  26.   current CPU frequency: Unable to call hardware
  27.   current CPU frequency: 1.88 GHz (asserted by call to kernel)
  28.   boost state support:
  29.     Supported: yes
  30.     Active: yes
  31. analyzing CPU 2:
  32.   driver: intel_pstate
  33.   CPUs which run at the same hardware frequency: 2
  34.   CPUs which need to have their frequency coordinated by software: 2
  35.   maximum transition latency:  Cannot determine or is not supported.
  36.   hardware limits: 400 MHz - 2.80 GHz
  37.   available cpufreq governors: performance powersave
  38.   current policy: frequency should be within 400 MHz and 2.80 GHz.
  39.                   The governor "powersave" may decide which speed to use
  40.                   within this range.
  41.   current CPU frequency: Unable to call hardware
  42.   current CPU frequency: 1.87 GHz (asserted by call to kernel)
  43.   boost state support:
  44.     Supported: yes
  45.     Active: yes
  46. analyzing CPU 3:
  47.   driver: intel_pstate
  48.   CPUs which run at the same hardware frequency: 3
  49.   CPUs which need to have their frequency coordinated by software: 3
  50.   maximum transition latency:  Cannot determine or is not supported.
  51.   hardware limits: 400 MHz - 2.80 GHz
  52.   available cpufreq governors: performance powersave
  53.   current policy: frequency should be within 400 MHz and 2.80 GHz.
  54.                   The governor "powersave" may decide which speed to use
  55.                   within this range.
  56.   current CPU frequency: Unable to call hardware
  57.   current CPU frequency: 1.88 GHz (asserted by call to kernel)
  58.   boost state support:
  59.     Supported: yes
  60.     Active: yes
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3、设置CPU调速器为powersave
  1. sudo cpupower -c all frequency-set -g powersave
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4、当然需要每次重启电脑都设置为自己指定的调速器
建立配置文件
  1. sudo touch /etc/default/cpupower
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请用自己喜欢的编辑器添加下面内容
  1. # 自己设置调度
  2. CPUPOWER_START_OPTS="-c all frequency-set -g powersave"
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建立systemd服务文件,每次重启设置CPU的调速器
  1. sudo touch /etc/systemd/system/cpupower.service
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请用自己喜欢的编辑器添加下面内容
  1. [Unit]
  2. Description=Configure CPU power related settings
  3. After=syslog.target

  4. [Service]
  5. Type=oneshot
  6. RemainAfterExit=yes
  7. EnvironmentFile=/etc/default/cpupower
  8. ExecStart=/usr/bin/cpupower $CPUPOWER_START_OPTS

  9. [Install]
  10. WantedBy=multi-user.target
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5、重启服务
  1. sudo systemctl daemon-reload
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6、开机自动启动
  1. sudo systemctl enable cpupower.service
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joo
deepin^3
2020-09-13 10:19
#2
随时可以更改调速器,按如下2个步骤
1、修改/etc/default/cpupower配置文件
  1. # 自己设置调度
  2. CPUPOWER_START_OPTS="-c all frequency-set -g performance"
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2、重启服务
  1. sudo systemctl daemon-reload
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灵兮之
deepin^4
2020-09-13 10:25
#3
mark。。
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joo
deepin^3
2020-09-13 10:34
#4
本帖最后由 joo_tsao 于 2020-9-13 18:37 编辑

其实深度应该像其他发行版那样,将配置文件和服务放入基本包,默认应该设为powersave,当然不同生产商的cpu和型号,要设为对应可用的调速器比我自用这个帖子复杂,好在cpupower -c all frequency-info会给出有用的信息,安装自动化脚本可以提取对应的调速器。
  1. available cpufreq governors: performance powersave
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SamLukeYes
deepin^6
2020-09-13 10:41
#5
可以搞个 GUI 然后打个包
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灵兮之
deepin^4
2020-09-15 01:31
#6
是哪个CPUpower?第一条安装的命令好像找不到这个软件

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joo
deepin^3
2020-09-15 07:14
#7
是linux-cpupower,上面写错,谢谢!
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deltacatxx
deepin^4
2020-09-15 11:02
#8
mark 一下,谢谢楼主
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chen5903710
deepin^2
2020-09-15 11:40
#9
mark 一下。。
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灵兮之
deepin^4
2020-09-16 10:06
#10
https://bbs.deepin.org/post/202001
是linux-cpupower,上面写错,谢谢!

已经装好,设置好了,重启之后sudo cpupower -c all frequency-info显示还是available cpufreq governors: performance powersave,不应该是available cpufreq governors: powersave吗
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rekees2020
deepin^4
2020-09-16 12:42
#11
tlp有什么原罪?和laptop mode tool是同类。laptop mode tool也不是高度嵌入deepin的,系统设置里的省电模式与它无关,那里的省电模式比较浅层,只是亮度之类的调节,删了laptop mode tool一样还在。
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joo
deepin^3
2020-09-16 13:30
#12
本帖最后由 joo_tsao 于 2020-9-16 21:31 编辑
https://bbs.deepin.org/post/202001
已经装好,设置好了,重启之后sudo cpupower -c all frequency-info显示还是available cpufreq governors ...
下面这是当前调度器,这available cpufreq governors可用的调度器。
  1. current policy: frequency should be within 400 MHz and 2.80 GHz.
  2.                   The governor "powersave" may decide which speed to use
  3.                   within this range.
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joo
deepin^3
2020-09-16 13:37
#13
https://bbs.deepin.org/post/202001
tlp有什么原罪?和laptop mode tool是同类。laptop mode tool也不是高度嵌入deepin的,系统设置里的省电模 ...

深度的节能使用的是laptop mode tool工具


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joo
deepin^3
2020-09-16 13:48
#14
你自己可以测试一下,开启和关闭节能模式,/etc/laptop-mode/laptop-mode.conf这个配置文件是变化的,也就是深度的节能模式使用laptop-mode,为什么要开启节能模式?呵呵,节能不单单只有CPU调频,还有各种设备的节能,例如蓝牙、鼠标、硬盘、USB、无线网卡等等。
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joo
deepin^3
2020-09-16 14:01
#15
其实,你也可以不用这些工具,例如:cat /proc/sys/vm/laptop_mode,如果是0就禁用节能模式,1就是使用电池时,2就是电池和AC电源都启用,你可以直接改变这些内核参数 echo 2  > /proc/sys/vm/laptop_mode,完整的内核参数还有很多,所以针对节能内核提供这么一组工具laptop mode tools.
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joo
deepin^3
2020-09-16 14:27
#16
你也可以在深度控制面板开启和关闭节能模式(深度只是通过图像界面设置进入那种模式,节能的工作是laptop_mode),分别看看cat /proc/sys/vm/laptop_mode是否发生变化,以及去看看/etc/laptop-mode下面的配置文件就知道,laptop mode的节能模式不是浅层的,而是深度节能的,除非你说Linux的内核开发者是傻瓜。
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rekees2020
deepin^4
2020-09-16 15:04
#17
本帖最后由 rekees2020 于 2020-9-16 23:18 编辑
https://bbs.deepin.org/post/202001
深度的节能使用的是laptop mode tool工具。

我早删了laptop mode tools,没有/etc/laptop-mode文件夹
测试过了,截图里的节能模式,拔掉电源就会自动成使能状态,并且屏幕亮度降低,说明这些选项都在发挥作用,与laptop mode tools没有必然联系,也可能是tlp接管;不过我没有测试laptop mode tools和tlp都删除后这些选项还有没有用,大概率是没用了
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rekees2020
deepin^4
2020-09-16 15:05
#18
本帖最后由 rekees2020 于 2020-9-16 23:13 编辑
https://bbs.deepin.org/post/202001
你自己可以测试一下,开启和关闭节能模式,/etc/laptop-mode/laptop-mode.conf这个配置文件是变化的,也就 ...

我早删了laptop mode tools,没有/etc/laptop-mode文件夹
测试过了,截图里的节能模式,拔掉电源就会自动成使能状态,并且屏幕亮度降低,说明这些选项都在发挥作用,与laptop mode tools没有必然联系
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rekees2020
deepin^4
2020-09-16 15:10
#19
本帖最后由 rekees2020 于 2020-9-16 23:15 编辑
https://bbs.deepin.org/post/202001
你也可以在深度控制面板开启和关闭节能模式(深度只是通过图像界面设置进入那种模式,节能的工作是laptop_m ...

我没说laptop mode tools是浅层的,相反,我说了它和tlp一样,可以做很多设置
我只说了系统里那几个简单的选项像是浅层的,简单的“节能模式”四个字,没有任何地方设置具体参数;当然,这些可能来自laptop mode tools,但是laptop mode tools能设置的不止这么简单
我只有tlp,那几个选项一样能用
有可能是删了laptop mode tools、装了tlp后,这些选项被tlp接管
laptop mode是Linux内核的东西,但是laptop mode tools不是
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rekees2020
deepin^4
2020-09-16 15:17
#20
本帖最后由 rekees2020 于 2020-9-16 23:20 编辑
https://bbs.deepin.org/post/202001
你也可以在深度控制面板开启和关闭节能模式(深度只是通过图像界面设置进入那种模式,节能的工作是laptop_m ...

cat /proc/sys/vm/laptop_mode  这个有结果,并且和当前的状态一致;没有/etc/laptop-mode文件夹
laptop mode是Linux内核的一部分,laptop mode tools只是一款软件,和tlp地位一样
卸载laptop mode tools之后,tlp管理laptop mode
按测试的情况,我只能这么理解
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