筆記型電腦風扇總是說它以 8 RPM 執行
我有一台具有以下規格的聯想 Legion Y520：
zjeffer@ArchLinux ----------------- OS: Arch Linux x86_64 Host: 80WK Lenovo Y520-15IKBN Kernel: 5.1.7-arch1-1-ARCH Uptime: 42 mins Packages: 1659 (pacman) Shell: zsh 5.7.1 Resolution: 1920x1080, 1920x1080 WM: bspwm Theme: OSX-Arc-Plus [GTK2/3] Icons: Papirus-Light [GTK2/3] Terminal: gnome-terminal CPU: Intel i7-7700HQ (8) @ 3.800GHz GPU: NVIDIA GeForce GTX 1050 Mobile GPU: Intel HD Graphics 630 Memory: 1369MiB / 7866MiB我正在使用thinkfan來嘗試控制我的 cpu 風扇。可悲的是，我看不到真正的風扇速度是多少，因為它總是說 8 RPM。
這是我的 thinkfan.conf，如果重要的話：
###################################################################### # thinkfan 0.7 example config file # ================================ # # ATTENTION: There is only very basic sanity checking on the configuration. # That means you can set your temperature limits as insane as you like. You # can do anything stupid, e.g. turn off your fan when your CPU reaches 70°C. # # That's why this program is called THINKfan: You gotta think for yourself. # ###################################################################### # # IBM/Lenovo Thinkpads (thinkpad_acpi, /proc/acpi/ibm) # ==================================================== # # 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: # tp_thermal /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: # tp_fan /proc/acpi/ibm/fan # tp_thermal /proc/acpi/ibm/thermal (0, 10, 15, 2, 10, 5, 0, 3, 0, 3) hwmon /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp1_input hwmon /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp2_input hwmon /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp3_input hwmon /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp4_input hwmon /sys/devices/platform/coretemp.0/hwmon/hwmon0/temp5_input hwmon /sys/devices/virtual/thermal/thermal_zone1/temp (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)這是輸出
dmesg | grep -i thinkpad：[ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=661a855a-c479-4291-bcb2-95b148ce2020 rw quiet nowatchdog nvidia-drm.modeset=1 thinkpad_acpi fan_control=1 [ 0.155975] Kernel command line: BOOT_IMAGE=/vmlinuz-linux root=UUID=661a855a-c479-4291-bcb2-95b148ce2020 rw quiet nowatchdog nvidia-drm.modeset=1 thinkpad_acpi fan_control=1 [ 4.231093] thinkpad_acpi: ThinkPad ACPI Extras v0.26 [ 4.231094] thinkpad_acpi: http://ibm-acpi.sf.net/ [ 4.231094] thinkpad_acpi: ThinkPad BIOS 4KCN40WW, EC unknown [ 4.231094] thinkpad_acpi: Lenovo Lenovo Y520-15IKBN, model 80WK [ 4.231554] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one [ 4.231620] thinkpad_acpi: Console audio control enabled, mode: monitor (read only) [ 4.232877] thinkpad_acpi: battery 1 registered (start 0, stop 0) [ 4.232879] battery: new extension: ThinkPad Battery Extension [ 4.232896] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input8在這裡它說
EC unknown，所以我不知道我有哪個 EC，並且在網際網路上找不到任何關於我的模型的資訊。
s-tui我在, in/proc/acpi/ibm/fan和 in 中檢查了這個速度sensors：它總是在 8 RPM，如果我在玩遊戲時能聽到它全速爆炸，這當然是不可能的。在 Windows 10 中，我發現
speedfan找不到任何粉絲。我還將 BIOS 版本從 4KCN40WW 更新為 4KCN45WW。沒有變化。如何查看我的真實風扇速度？
部分答案：
從您的
dmesg,thinkpad_acpi被載入。我快速瀏覽了核心原始碼，它似乎沒有輸出任何與粉絲相關的消息。但是，程式碼中的一些註釋說：
ThinkPad EC 寄存器 0x84 (LSB)、0x85 (MSB)：主風扇轉速計讀數（以 RPM 為單位）
該寄存器存在於所有具有新型 EC 的 ThinkPad 上，並且已知在 A21m/e 和 T22 上不存在，因為根據 ACPI DSDT 在偏移量 0x84 中還有其他內容。同一時期（或更早）的其他 ThinkPad 可能也缺少轉速計。
不幸的是，許多具有新型 EC 但其韌體從未被 IBM 修復以報告 EC 韌體版本字元串的 ThinkPad 可能支持轉速計（如早期的 X 型號），因此檢測它非常困難。我們需要更多數據才能確定。
FIRMWARE BUG：總是先讀取 0x84，否則可能會導致錯誤的讀數。
韌體錯誤：EC 切換到全速模式時可能會過時。
有關韌體錯誤，請參閱： http ://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
EC 是筆記型電腦的嵌入式控制器。
因此存在三個潛在問題：在某些 thinkpad 上，轉速計根本不可用，在某些 thinkpad 上，此位置有其他東西，在某些 thinkpad 上，韌體有誤。
這意味著您必須將Lenovo Legion Y520 與您使用的任何版本名稱相匹配，並查找韌體錯誤。
有疑問，我會通過核心 bugtracker 聯繫該模組的維護人員，看看他們是否對您的特定模型有任何想法。