From b7ce7d5b3f3b2b95476afb39739f40d1f38f5e36 Mon Sep 17 00:00:00 2001
From: Johannes Frankenau <johannes@frankenau.net>
Date: Fri, 22 Jun 2018 21:23:58 +0200
Subject: [PATCH] nixos/display-managers: fix loading of module-x11-publish

module-x11-publish is only provided by the pulseaudioFull package.
---
 nixos/modules/services/x11/display-managers/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 43ed21c95fe..c934642db5c 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -90,7 +90,9 @@ let
         }
 
         # Publish access credentials in the root window.
-        ${config.hardware.pulseaudio.package.out}/bin/pactl load-module module-x11-publish "display=$DISPLAY"
+        if ${config.hardware.pulseaudio.package.out}/bin/pulseaudio --dump-modules | grep module-x11-publish &> /dev/null; then
+          ${config.hardware.pulseaudio.package.out}/bin/pactl load-module module-x11-publish "display=$DISPLAY"
+        fi
       ''}
 
       # Tell systemd about our $DISPLAY and $XAUTHORITY.