From 3459326a96db4d019fa16629f4f98f1c0319e18a Mon Sep 17 00:00:00 2001
From: Kai Torben Ohlhus <k.ohlhus@gmail.com>
Date: Sun, 19 May 2024 07:00:16 +0900
Subject: [PATCH] Update README.md

---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index e794343..4978e07 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,14 @@ docker run \
 For old Octave 4.x.x versions you might additionally pass the
 `--env=QT_GRAPHICSSYSTEM=native` environment variable.
 
+The following error results from a missing `$HOME/.Xauthority` file:
+```
+Authorization required, but no authorization protocol specified
+octave: unable to open X11 DISPLAY
+octave: disabling GUI features
+```
+Create this file via `ln -s -f "$XAUTHORITY" $HOME/.Xauthority`.
+
 > **Note:** The best experience was made with Singularity and Docker.
 > Podman had several flaws when run as unprivileged (non-root) user.