集成显卡的T420s装ubuntu14，风扇比较吵，如何解决？
各位大侠，我在一个T420s的笔记本上面（集成显卡）安装ubuntu14.04系统。装完后发现风扇声音特别大，请问有没有遇到过这样的情况的，应该如何解决呢？ 目前正在做将系统升级到15.10，看看能不能好点。还有就是过两天16就出来了。自己感觉是因为驱动的问题，但是更新了intel显卡驱动到1.0.7还是一样。 armok 发表于 2016-4-17 07:09
安装 windows就没有这个噪音问题？
嗯嗯，应该是的。
之前没注意看看。
感觉上和系统有关系。
他有的时候，比如我在下载的过程中，有那么几分钟，完全就听不到声音了。
但是绝大多数时间内，声音特别的吵。
有点受不了。
现在只能将系统升级了后再看看效果。 另外，我两台笔记本放一起比较。
一台是x240、win7系统，只跑一个浏览器。
另外一台就是t420s，ubuntu14，目前在下载。
人坐在中间位置，明显t420s那叫一个吵。{:sad:} lshw -C display
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:34 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:4000(size=64) 视乎找到了个说明，下面来试试。
地址也贴出来，如果各位有和我一样的问题的，也来试试吧。
http://askubuntu.com/questions/22108/how-to-control-fan-speed/402310#402310
主要是安装thinkfan，希望能解决问题。 没装过ubuntu。我在T420S安装centos6一切正常。 呵呵，就按照上面的网址，就完全解决了。
如果有人遇到这样的问题，也按照这个办法解决就可以了。
将过程贴到下面，方便大家查询。
Step 1. Install the thinkfan software and the sensors:
sudo apt-get install thinkfan lm-sensors
Step 2. Make sure that the daemon controls the fan by editting the thinkpad.conf file:
sudo nano /etc/modprobe.d/thinkfan.conf
by adding the following line:
options thinkpad_acpi fan_control=1
Step 3. Make the daemon load automatically at start-up by editting the file:
sudo nano /etc/default/thinkfan
making sure that the START key is set to yes, i.e. there should be a line that says:
START=yes
Step 4. Detect your laptop's sensors:
sudo sensors-detect
and just choose the default answers whenever you're prompted by hitting Enter.
Step 5. Load the new modules. From ubuntu 13.10 this done by:
sudo service kmod start
while for previous versions like 13.04 you instead will need to do:
sudo service module-init-tools start
Step 6. Figure out which sensors are in use:
sensors
(the ones that indicate 0 degrees are not in use, I don't know why those are "detected" too). Remember which ones are in use.
Step 7. Find out the full paths of these sensors:
find /sys/devices -type f -name "temp*_input"
The output should be a list of paths like /sys/devices/...
Step 8. Copy-paste the paths to the sensors into the configuration file /etc/thinkpad.conf. To do this, first open up the file:
sudo nano /etc/thinkfan.conf
There should already be a line like
#sensor /proc/acpi/ibm/thermal (0, 10, 15, 2, 10, 5, 0, 3, 0, 3)
(the #-symbol means that that line is commented out). Add a line starting with sensor (without the #-symbol) and copy-paste you first sensor. Repeat this if you have more than one sensor. For example, on my machine, the output in step 7 yields
/sys/devices/virtual/hwmon/hwmon0/temp1_input
/sys/devices/platform/thinkpad_hwmon/temp3_input
/sys/devices/platform/thinkpad_hwmon/temp4_input
/sys/devices/platform/thinkpad_hwmon/temp5_input
/sys/devices/platform/thinkpad_hwmon/temp6_input
/sys/devices/platform/thinkpad_hwmon/temp7_input
/sys/devices/platform/thinkpad_hwmon/temp1_input
/sys/devices/platform/thinkpad_hwmon/temp8_input
/sys/devices/platform/thinkpad_hwmon/temp2_input
/sys/devices/platform/coretemp.0/temp4_input
/sys/devices/platform/coretemp.0/temp2_input
The ones that are in use in my machine are the ones in the first and the last two lines, so I added the three lines:
sensor /sys/devices/virtual/hwmon/hwmon0/temp1_input
sensor /sys/devices/platform/coretemp.0/temp4_input
sensor /sys/devices/platform/coretemp.0/temp2_input
Step 9. Finally we can set the fan speed levels in the configuration file. Open the /etc/thinkpad.conf file if it wasn't open already.
sudo nano /etc/thinkfan.conf
The fan levels I use on my ThinkPad x201 are:
(0, 0, 51)
(1, 50, 52)
(2, 51, 55)
(3, 54, 58)
(4, 56, 63)
(5, 60, 70)
(6, 66, 79)
(7, 74, 92)
(127, 85, 32767)
The last line ensures full fan speed (127 = "disengaged" i.e. unregulated). You can fiddle with these levels to fit your needs/wishes, but PLEASE BE CAREFUL!
For those people out there familiar with Mathematica, I wrote a short notebook to generate these fan speed values.
Step 10. Reboot. Everything should work now. In order to check whether thinkpad is runnning correctly, use
sudo thinkfan -n
which starts thinkfan in verbose mode. You might want to stop the thinkfan daemon first:
sudo /etc/init.d/thinkfan stop
If you want to start the thinkfan daemon again, type:
sudo /etc/init.d/thinkfan start
Just to be complete, my /etc/thinkfan.conf configuration file is:
# IMPORTANT:
#
# To keep your HD from overheating, you have to specify a correction value for
# the sensor that has the HD's temperature. You need to do this because
# thinkfan uses only the highest temperature it can find in the system, and
# that'll most likely never be your HD, as most HDs are already out of spec
# when they reach 55 °C.
# Correction values are applied from left to right in the same order as the
# temperatures are read from the file.
#
# For example:
# sensor /proc/acpi/ibm/thermal (0, 0, 10)
# will add a fixed value of 10 °C the 3rd value read from that file. Check out
# http://www.thinkwiki.org/wiki/Thermal_Sensors to find out how much you may
# want to add to certain temperatures.
# Syntax:
# (LEVEL, LOW, HIGH)
# LEVEL is the fan level to use (0-7 with thinkpad_acpi)
# LOW is the temperature at which to step down to the previous level
# HIGH is the temperature at which to step up to the next level
# All numbers are integers.
#
# I use this on my T61p:
#sensor /proc/acpi/ibm/thermal (0, 10, 15, 2, 10, 5, 0, 3, 0, 3)
#(0, 0, 55)
#(1, 48, 60)
#(2, 50, 61)
#(3, 52, 63)
#(4, 56, 65)
#(5, 59, 66)
#(7, 63, 32767)
# My settings for my ThinkPad X201: (kris)
sensor /sys/devices/virtual/hwmon/hwmon0/temp1_input
sensor /sys/devices/platform/coretemp.0/temp4_input
sensor /sys/devices/platform/coretemp.0/temp2_input
(0, 0, 51)
(1, 50, 52)
(2, 51, 55)
(3, 54, 58)
(4, 56, 63)
(5, 60, 70)
(6, 66, 79)
(7, 74, 92)
(127, 85, 32767) 学习一下 学习了 有可能是风扇问题，清理下你的风扇吧 MDC012170 发表于 2016-4-17 09:06
有可能是风扇问题，清理下你的风扇吧
已经找到问题了，谢谢！ 驱动或者过热 sxmilovebb2 发表于 2016-4-17 23:06
驱动或者过热
应该算是驱动的问题，需要手动配置驱动文件 。
根据sensor的温度值，来调整风扇的pwm宽度 ，实现低温的时候，低转速。
见上面的详细步骤。 学习了，谢谢分享 学习了，谢谢分享 应该是驱动的问题，以前遇到过
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