From 0a2dbbeb9324a265053289e66ee578ff5fbfe42f Mon Sep 17 00:00:00 2001
From: Alejandro Rosales <alejandro.rosales@lasalle.mx>
Date: Tue, 8 Sep 2026 11:02:39 -0600
Subject: [PATCH] Detect Ubuntu GDM configuration path

---
 scripts/Install-SguLinuxRustDeskClient.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/Install-SguLinuxRustDeskClient.sh b/scripts/Install-SguLinuxRustDeskClient.sh
index 31de969..09111b4 100644
--- a/scripts/Install-SguLinuxRustDeskClient.sh
+++ b/scripts/Install-SguLinuxRustDeskClient.sh
@@ -230,7 +230,11 @@ configure_x11_login_screen() {
 
     case "$display_manager" in
         gdm3.service|gdm.service)
-            if [[ $display_manager == gdm3.service ]]; then
+            # Ubuntu exposes the unit as gdm.service on some releases while
+            # the package still reads /etc/gdm3/custom.conf. Prefer the
+            # distribution-specific directory instead of inferring it only
+            # from the unit name.
+            if [[ -d /etc/gdm3 || -f /etc/gdm3/custom.conf ]]; then
                 configuration_path='/etc/gdm3/custom.conf'
             else
                 configuration_path='/etc/gdm/custom.conf'