Помогите не запускается caffeine вот что пишет в терминале
GA-MA770T-UD3P:~$ sudo caffeine
[sudo] password for udacha:
Traceback (most recent call last):
File "/usr/bin/caffeine", line 30, in <module>
ewmh = EWMH()
File "/usr/lib/python3/dist-packages/ewmh.py", line 51, in __init__
self.display = _display or display.Display()
File "/usr/lib/python3/dist-packages/Xlib/display.py", line 80, in __init__
self.display = _BaseDisplay(display)
File "/usr/lib/python3/dist-packages/Xlib/display.py", line 62, in __init__
display.Display.__init__(*(self, ) + args, **keys)
File "/usr/lib/python3/dist-packages/Xlib/protocol/display.py", line 129, in __init__
raise error.DisplayConnectionError(self.display_name, r.reason)
Xlib.error.DisplayConnectionError: Can't connect to display ":0": b'No protocol specified\n'
