From d654c44d2f967247c219950158e7fc3cc36658e0 Mon Sep 17 00:00:00 2001
From: Alex Martens <alex@thinglab.org>
Date: Mon, 27 Feb 2023 15:51:41 -0800
Subject: [PATCH] drawio-headless: add --auto-display to prevent races

---
 pkgs/applications/graphics/drawio/headless.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/graphics/drawio/headless.nix b/pkgs/applications/graphics/drawio/headless.nix
index c70511fa6528..34959da67b46 100644
--- a/pkgs/applications/graphics/drawio/headless.nix
+++ b/pkgs/applications/graphics/drawio/headless.nix
@@ -21,7 +21,7 @@ writeTextFile {
     # Drawio needs to run in a virtual X session, because Electron
     # refuses to work and dies with an unhelpful error message otherwise:
     # "The futex facility returned an unexpected error code."
-    XDG_CONFIG_HOME="$tmpdir" ${xvfb-run}/bin/xvfb-run ${drawio}/bin/drawio $@
+    XDG_CONFIG_HOME="$tmpdir" ${xvfb-run}/bin/xvfb-run --auto-display ${drawio}/bin/drawio $@
   '';
 
   meta = with lib; {