From dd668469d7e628d651755b34d46e0fd5921b057a Mon Sep 17 00:00:00 2001
From: ksp-apoc <ksp.apoc@gmail.com>
Date: Mon, 4 May 2026 00:45:04 +0800
Subject: [PATCH] fix: clean up orphaned idle inhibitor processes on startup
 (#2324)

When quickshell crashes or is force-killed, the child systemd-inhibit
process (used as fallback when native IdleInhibitor is unavailable) gets
reparented to PID 1 and continues to block idle indefinitely. This causes
hypridle to ignore all idle timeout rules even though the idle inhibitor
widget appears inactive after restart.

Add a cleanup step during initialization that kills any orphaned
systemd-inhibit processes from previous sessions.
---
 quickshell/Services/SessionService.qml | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/quickshell/Services/SessionService.qml b/quickshell/Services/SessionService.qml
index 74473499..160a4f11 100644
--- a/quickshell/Services/SessionService.qml
+++ b/quickshell/Services/SessionService.qml
@@ -66,6 +66,7 @@ Singleton {
             detectHibernateProcess.running = true;
             detectPrimeRunProcess.running = true;
             detectWtypeProcess.running = true;
+            cleanupOrphanedInhibitors();
             log.info("Native inhibitor available:", nativeInhibitorAvailable);
             if (!SettingsData.loginctlLockIntegration) {
                 log.debug("loginctl lock integration disabled by user");
@@ -462,6 +463,26 @@ Singleton {
         }
     }
 
+    // Kill orphaned idle inhibitor processes left behind by previous quickshell sessions.
+    // When quickshell crashes or is force-killed, the child systemd-inhibit process gets
+    // reparented to PID 1 and continues to block idle indefinitely.
+    function cleanupOrphanedInhibitors() {
+        if (nativeInhibitorAvailable) return;
+        orphanCleanupProcess.running = true;
+    }
+
+    Process {
+        id: orphanCleanupProcess
+        running: false
+        command: ["pkill", "-f", "systemd-inhibit --what=idle --who=quickshell.*sleep infinity"]
+
+        onExited: function (exitCode) {
+            if (exitCode === 0) {
+                log.info("Cleaned up orphaned idle inhibitor process(es) from a previous session");
+            }
+        }
+    }
+
     Connections {
         target: DMSService