title: Trying to make a simple menu with tkinter but returns "Display is not capable of DPMS"
body: <p>I am very noob and I need help please.</p>
  
  <p>Here's my code:</p>
  
  <pre><code>from tkinter import *
  
  root = Tk()
  root.geometry('500x500')
  
  def callback() :
      print ("click!")
  
  b = Button(root, text="OK", command=callback)
  b.pack()
  
  mainloop()
  </code></pre>