Add hint for qgis_process usage on systems without window manager

Fixes #7947
qgis · Nov 5, 2023 · 7a89d62 · 7a89d62
1 parent 71b535b
commit 7a89d62
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/docs/user_manual/processing/standalone.rst b/docs/user_manual/processing/standalone.rst
@@ -49,6 +49,11 @@ From a command line tool, run ``qgis_process`` and you should get:
   in their :file:`metadata.txt` file are recognized and can be activated
   or loaded by qgis_process tool.
 
+.. hint:: Before calling qgis_process on a system without window manager (e.g. a headless server),
+    you should set::
+
+     export QT_QPA_PLATFORM=offscreen
+
 
 The command ``list`` can be used to get a list of all available providers
 and algorithms.