diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
index 9afca6ff81eb..819525482cb7 100644
--- a/lib/matplotlib/figure.py
+++ b/lib/matplotlib/figure.py
@@ -18,7 +18,7 @@
import numpy as np
from matplotlib import rcParams
-from matplotlib import docstring
+from matplotlib import backends, docstring
from matplotlib import __version__ as _mpl_version
from matplotlib import get_backend
@@ -415,12 +415,8 @@ def show(self, warn=True):
Parameters
----------
warn : bool
- If ``True``, issue warning when called on a non-GUI backend
-
- Notes
- -----
- For non-GUI backends, this does nothing, in which case a warning will
- be issued if *warn* is ``True`` (default).
+ If ``True`` and we are not running headless (i.e. on Linux with an
+ unset DISPLAY), issue warning when called on a non-GUI backend.
"""
try:
manager = getattr(self.canvas, 'manager')
@@ -436,7 +432,8 @@ def show(self, warn=True):
return
except NonGuiException:
pass
- if warn:
+ if (backends._get_running_interactive_framework() != "headless"
+ and warn):
warnings.warn('Matplotlib is currently using %s, which is a '
'non-GUI backend, so cannot show the figure.'
% get_backend())
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