nixos X tests: wait for logind to link a session to the server

There seems to be some race causing failures if an X command gets in before slim starts the session

Signed-off-by: Shea Levy <shea@shealevy.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/nixos/tests/xfce.nix b/nixos/tests/xfce.nix
index 9f9692f8a01..50ce54c918b 100644
--- a/nixos/tests/xfce.nix
+++ b/nixos/tests/xfce.nix
@@ -17,6 +17,7 @@
 
   testScript =
     ''
+      $machine->waitForX;
       $machine->waitForWindow(qr/xfce4-panel/);
       $machine->sleep(10);