如何迫使风扇始终旋转？

我在有过热问题的HP Pavilion dv9000t上使用ArchLinux。我做了所有我想做的事情，以使笔记本电脑中的气流更好，并贴上更好的导热膏，但是仍然存在问题：

当CPU温度较低时（即使GPU温度较高，风扇也会停止旋转）。

我发现我可以通过执行一些繁重的处理命令（例如yes命令）来使风扇运转。但是，这不是解决方案，因为我需要在CPU过热时停止此命令，并在风扇停止运行时再次启动它（以使GPU不会过热）。

我试图使用此Wiki控制风扇，但运行时出现pwmconfig此错误：

/usr/bin/pwmconfig: There are no pwm-capable sensor modules installed

您知道如何使风扇始终旋转吗？

编辑：

该sensors-dectect输出如下：

~/ sudo sensors-detect 
# sensors-detect revision 6170 (2013-05-20 21:25:22 +0200)
# System: Hewlett-Packard HP Pavilion dv9700 Notebook PC [Rev 1] (laptop)
# Board: Quanta 30CB

This program will help you determine which kernel modules you need
to load to use lm_sensors most effectively. It is generally safe
and recommended to accept the default answers to all questions,
unless you know what you're doing.

Some south bridges, CPUs or memory controllers contain embedded sensors.
Do you want to scan for them? This is totally safe. (YES/no): 
Module cpuid loaded successfully.
Silicon Integrated Systems SIS5595...                       No
VIA VT82C686 Integrated Sensors...                          No
VIA VT8231 Integrated Sensors...                            No
AMD K8 thermal sensors...                                   No
AMD Family 10h thermal sensors...                           No
AMD Family 11h thermal sensors...                           No
AMD Family 12h and 14h thermal sensors...                   No
AMD Family 15h thermal sensors...                           No
AMD Family 15h power sensors...                             No
AMD Family 16h power sensors...                             No
Intel digital thermal sensor...                             Success!
    (driver `coretemp')
Intel AMB FB-DIMM thermal sensor...                         No
VIA C7 thermal sensor...                                    No
VIA Nano thermal sensor...                                  No

Some Super I/O chips contain embedded sensors. We have to write to
standard I/O ports to probe them. This is usually safe.
Do you want to scan for Super I/O sensors? (YES/no): 
Probing for Super-I/O at 0x2e/0x2f
Trying family `National Semiconductor/ITE'...               No
Trying family `SMSC'...                                     No
Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
Trying family `ITE'...                                      No
Probing for Super-I/O at 0x4e/0x4f
Trying family `National Semiconductor/ITE'...               No
Trying family `SMSC'...                                     No
Trying family `VIA/Winbond/Nuvoton/Fintek'...               No
Trying family `ITE'...                                      No

Some hardware monitoring chips are accessible through the ISA I/O ports.
We have to write to arbitrary I/O ports to probe them. This is usually
safe though. Yes, you do have ISA I/O ports even if you do not have any
ISA slots! Do you want to scan the ISA I/O ports? (YES/no): 
Probing for `National Semiconductor LM78' at 0x290...       No
Probing for `National Semiconductor LM79' at 0x290...       No
Probing for `Winbond W83781D' at 0x290...                   No
Probing for `Winbond W83782D' at 0x290...                   No

Lastly, we can probe the I2C/SMBus adapters for connected hardware
monitoring devices. This is the most risky part, and while it works
reasonably well on most systems, it has been reported to cause trouble
on some systems.
Do you want to probe the I2C/SMBus adapters now? (YES/no): 
Using driver `i2c-i801' for device 0000:00:1f.3: Intel 82801H ICH8
Module i2c-dev loaded successfully.

Next adapter: nouveau-0000:01:00.0-0 (i2c-0)
Do you want to scan it? (yes/NO/selectively): 

Next adapter: nouveau-0000:01:00.0-1 (i2c-1)
Do you want to scan it? (yes/NO/selectively): 

Next adapter: nouveau-0000:01:00.0-2 (i2c-2)
Do you want to scan it? (yes/NO/selectively): 

Now follows a summary of the probes I have just done.
Just press ENTER to continue: 

Driver `coretemp':
  * Chip `Intel digital thermal sensor' (confidence: 9)

Do you want to overwrite /etc/conf.d/lm_sensors? (YES/no): 
Unloading i2c-dev... OK
Unloading cpuid... OK

该文件/etc/conf.d/lm_sensors包含：

HWMON_MODULES="coretemp"

该文件/etc/modules-load.d/lm_sensors.conf包含：

coretemp
acpi-cpufreq

该命令sensors输出以下内容：

~/ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0:       +46.0°C  (high = +85.0°C, crit = +85.0°C)
Core 1:       +47.0°C  (high = +85.0°C, crit = +85.0°C)

acpitz-virtual-0
Adapter: Virtual device
temp1:        +49.0°C  

nouveau-pci-0100
Adapter: PCI adapter
temp1:        +60.0°C  (high = +95.0°C, hyst =  +3.0°C)
                       (crit = +115.0°C, hyst =  +5.0°C)
                       (emerg = +115.0°C, hyst =  +5.0°C)

我做了一些挖掘和发现，你的笔记本从制造商的一个漏洞（NVIDIA的芯片，专），并且唯一的解决办法就是做一个“回流”的解释在这里。

您可以暂时购买散热垫，以延长笔记本电脑的使用寿命，但不能解决温度问题。

关于无法运行pwmconfig，BIOS不包括（根据HP文档）任何手动修改风扇速度的方法，因此pwmconfig失败，因为没有任何模块可以控制该值。

对于其他笔记本电脑，我建议您检查您的手册/规格并查看它们是否包含对此模块的支持。如果您不确定或文档中未包含这些信息，则运行传感器检测不会受到伤害。还要记住，有时即使您的机器包含支持，Linux也不包含这些模块，因此您必须保持最新内核的更新并祈祷。

我最终决定选择一种硬件解决方案。

我从风扇上剪了两根线，现在风扇总是旋转（虽然处于最大水平）。

我在此博客文章中找到了此解决方案。