Getting Monitor resolution in Python on Ubuntu

I can suggest a few approaches that can be used. I have not used the xlib version though.

1) xlib ( X client library for Python programs), if available on your system. You can look at "Display" methods and properties : python-xlib.sourceforge

2) On Ubuntu, you could do the following to get the screen resolution:

 xrandr | grep \* | cut -d' ' -f4 

3) You can use subprocess python module, to run the above command and extract the information

import subprocess output = subprocess.Popen('xrandr | grep "\*" | cut -d" " -f4',shell=True, stdout=subprocess.PIPE).communicate()[0] print output 

Let me know, if this was helpful to you.

import subprocess def get_screen_resolution(): output = subprocess.Popen('xrandr | grep "\*" | cut -d" " -f4',shell=True, stdout=subprocess.PIPE).communicate()[0] resolution = output.split()[0].split(b'x') return {'width': resolution[0], 'height': resolution[1]} print(get_screen_resolution()) 

The resolution[0] would be Byte format like b'1020'. To convert this to Integer format, please try int(resolution[0].decode('UTF-8')).

I'm using python 3.5 on Ubuntu 16.04 LTS and had the same problem. I wanted to solve it without having to rely on extra modules because they aren't installed by default.

So I imagined this small function, which uses xrandr to get the data.

def monitorsInfo(): import subprocess def getParenthesis(texte): content = None p1 = texte.find('(') if p1 >= 0: p2 = texte.find(')') if p2 > p1: content = texte[p1:p2+1] return content commande = ['xrandr','--listmonitors'] res = subprocess.check_output(commande, shell=True).decode().split('\n') monitors = {} for l in res: if len(l) > 1: if l[0] != ' ': if l.split()[0] == l.split()[0].upper(): options = getParenthesis(l) if options: l = l.replace(options, '') z = l.split() # this is a connector name = z[0] conn = None primary = None geo = None size = None width = height = offsetx = offsety = None if z[1].lower() == 'connected': conn = True # monitor in use :-) else: # screeen connection exists, no screen used conn = False # for connected screens : get extra data if conn: if z[2].lower() == 'primary': primary = True z.pop(2) # other data for connected screeens geo = z[2] # get rid of extra 'primary' size = ''.join(z[3:]) # get width and height z = geo.split('+') offsetx = int(z[1]) offsety = int(z[2]) z = z[0].split('x') width = int(z[0]) height = int(z[1]) # create a dict per monitor d = {} d['name'] = name d['connected'] = conn d['primary'] = primary d['geometry'] = geo d['options'] = options d['size'] = size d['width'] = width d['height'] = height d['offsetx'] = offsetx d['offsety'] = offsety monitors[name] = d return monitors 

The result is returned as a dictionary.

pyautogui makes the work simple.

import pyautogui pyautogui.size() 

will fetch your screen resolution as a tuple containing (width, height)

Just tested this with Python 3 - you can use the Xlib module:

from Xlib.display import Display screen = Display(':0').screen() print(screen.width_in_pixels, screen.height_in_pixels) 

Homepage: https://github.com/python-xlib/python-xlib

If you don't have the Xlib module installed, run

python3 -m pip install Xlib 

or

sudo apt install python3-xlib