├── README.md
└── fan.py


/README.md:
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 1 | # Thinkpad Fan Control GUI
 2 | 
 3 | ![Screenshot](https://i.imgur.com/UXII1Mg.png)
 4 | 
 5 | This is an application for controlling fan speed on IBM/Lenovo ThinkPads.
 6 | 
 7 | It can also monitor CPU temp and fan RPM.
 8 | 
 9 | It is written for Linux only. For windows, see http://www.almico.com/speedfan.php   
10 | 
11 | ## How it Works?
12 |  + Parses `sensors` command to show CPU temp and fan RPM
13 |  + Modifies `/proc/acpi/ibm/fan` to change fan speed
14 | 
15 | ## Dependencies
16 | `sudo apt install lm-sensors python3 python3-tk`
17 | 
18 | ## Setup
19 | + Open this file, using command -- `sudo nano /etc/modprobe.d/thinkpad_acpi.conf` 
20 | + Add line `options thinkpad_acpi fan_control=1`
21 | + Reboot. 
22 | + `python3 fan.py`
23 | 
24 | ( Add `sudo` to modify speed )
25 | 
26 | ---
27 | 
28 | Note: You are required to have the Linux kernel with `thinkpad-acpi` patch. (Ubuntu, Solus and a few others already seem to have this)
29 | 


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/fan.py:
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 1 | #!/usr/bin/python3
 2 | import tkinter as tk
 3 | import subprocess
 4 | from time import sleep
 5 | from threading import Thread
 6 | 
 7 | 
 8 | def get_info():
 9 |     info_lines = subprocess.check_output("sensors").decode("utf-8").split("\n")
10 |     result = []
11 |     count = 0
12 |     for i in info_lines:
13 |         if "Core" in i:
14 |             result.append("Core %d: " % count + i.split(":")[-1].split("(")[0].strip())
15 |             count += 1
16 | 
17 |         if "fan" in i:
18 |             result.append("Fan : " + i.split(":")[-1].strip())
19 | 
20 |     return result
21 | 
22 | 
23 | def set_speed(speed=None):
24 |     """
25 |     Set speed of fan by changing level at /proc/acpi/ibm/fan
26 |     speed: 0-7, auto, disengaged, full-speed
27 |     """
28 |     print("set level to %r" % speed)
29 |     return subprocess.check_output(
30 |         'echo level {0} | sudo tee "/proc/acpi/ibm/fan"'.format(speed),
31 |         shell=True
32 |     ).decode()
33 | 
34 | 
35 | class MainApplication(tk.Frame):
36 |     def __init__(self, parent, *args, **kwargs):
37 |         tk.Frame.__init__(self, parent, *args, **kwargs)
38 |         self.parent = parent
39 |         self.parent.minsize(width=100, height=100)
40 | 
41 |         main_label = tk.Label(parent, text="")
42 |         main_label.grid(row=0, column=0)
43 | 
44 |         row1 = tk.Frame()
45 |         row1.grid()
46 |         for i in range(8):
47 |             tk.Button(row1, text=str(i), command=lambda x=i: set_speed(x)).grid(
48 |                 row=0, column=i + 1
49 |             )
50 | 
51 |         row2 = tk.Frame()
52 |         row2.grid()
53 | 
54 |         tk.Button(row2, text="Auto", command=lambda: set_speed("auto")).grid(
55 |             row=0, column=0
56 |         )
57 |         tk.Button(row2, text="Full", command=lambda: set_speed("full-speed")).grid(
58 |             row=0, column=1
59 |         )
60 | 
61 |         def display_loop():
62 |             while True:
63 |                 sleep(0.5)
64 |                 main_label["text"] = "\n".join(get_info())
65 | 
66 |         Thread(target=display_loop).start()
67 | 
68 | 
69 | if __name__ == "__main__":
70 |     root = tk.Tk()
71 |     root.title("Thinkfan Control")
72 |     MainApplication(root).grid()
73 |     root.mainloop()
74 | 


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