6 files changed, 43 insertions, 2 deletions
diff --git a/roles/ethtool/README.md b/roles/ethtool/README.md
index c1902568..69f987ee 100644
--- a/roles/ethtool/README.md
+++ b/roles/ethtool/README.md
@@ -5,7 +5,8 @@ Installs ethtool and configures Wake-on-LAN (WoL) via a systemd service.
 ## Variables
 
 ```yaml
-ethtool_wol_interface: "eth0"  # Network interface to enable WoL on
+ethtool_wol_interface: "eth0"      # Network interface to enable WoL on
+ethtool_lid_ac_action: "suspend"   # HandleLidSwitchExternalPower (ignore/suspend/hibernate/lock/poweroff)
 ```
 
 ## Usage
@@ -38,7 +39,11 @@ Enables WoL on the NIC via ethtool on every boot. Add to your play with the corr
 ethtool_wol_interface: "enp0s25"
 ```
 
-### 3. Suspend the host
+### 3. Lid behavior (laptops)
+
+Role configures `HandleLidSwitchExternalPower` via `ethtool_lid_ac_action` (default: `suspend`). Set to `ignore` for WoL use case — lid close on AC won't re-suspend after wake. No effect on desktops.
+
+### 4. Suspend the host
 
 WoL is most reliable from suspend (S3). Shutdown (S5) requires BIOS "WoL from S5" support.
 
diff --git a/roles/ethtool/defaults/main.yml b/roles/ethtool/defaults/main.yml
index 61cfd43e..8da62da2 100644
--- a/roles/ethtool/defaults/main.yml
+++ b/roles/ethtool/defaults/main.yml
@@ -1,2 +1,3 @@
 ---
 ethtool_wol_interface: "eth0"
+ethtool_lid_ac_action: "suspend"
diff --git a/roles/ethtool/handlers/main.yml b/roles/ethtool/handlers/main.yml
index 3360d709..88cc1a15 100644
--- a/roles/ethtool/handlers/main.yml
+++ b/roles/ethtool/handlers/main.yml
@@ -3,3 +3,9 @@
   become: true
   ansible.builtin.systemd_service:
     daemon_reload: true
+
+- name: "Reload systemd-logind"
+  become: true
+  ansible.builtin.systemd_service:
+    name: "systemd-logind"
+    state: "restarted"
diff --git a/roles/ethtool/meta/argument_specs.yml b/roles/ethtool/meta/argument_specs.yml
index 8f6ce206..ef5aefad 100644
--- a/roles/ethtool/meta/argument_specs.yml
+++ b/roles/ethtool/meta/argument_specs.yml
@@ -6,3 +6,15 @@ argument_specs:
         type: "str"
         description: "Network interface to enable Wake-on-LAN on"
         default: "eth0"
+      ethtool_lid_ac_action:
+        type: "str"
+        description: "HandleLidSwitchExternalPower value"
+        default: "suspend"
+        choices:
+          - "ignore"
+          - "suspend"
+          - "hibernate"
+          - "hybrid-sleep"
+          - "suspend-then-hibernate"
+          - "lock"
+          - "poweroff"
diff --git a/roles/ethtool/tasks/main.yml b/roles/ethtool/tasks/main.yml
index 9d2dac60..d1832d0b 100644
--- a/roles/ethtool/tasks/main.yml
+++ b/roles/ethtool/tasks/main.yml
@@ -22,3 +22,18 @@
     enabled: true
     state: "started"
     daemon_reload: true
+
+- name: "Ensure /etc/systemd/logind.conf.d exists"
+  become: true
+  ansible.builtin.file:
+    path: "/etc/systemd/logind.conf.d"
+    state: "directory"
+    mode: "0755"
+
+- name: "Configure lid switch on AC power"
+  become: true
+  ansible.builtin.template:
+    src: "logind.conf.j2"
+    dest: "/etc/systemd/logind.conf.d/wol.conf"
+    mode: "0644"
+  notify: "Reload systemd-logind"
diff --git a/roles/ethtool/templates/logind.conf.j2 b/roles/ethtool/templates/logind.conf.j2
new file mode 100644
index 00000000..722e3a8a
--- /dev/null
+++ b/roles/ethtool/templates/logind.conf.j2
@@ -0,0 +1,2 @@
+[Login]
+HandleLidSwitchExternalPower={{ ethtool_lid_ac_action }}