File U_systemd-logind-do-not-rely-on-directed-signals.patch of Package xorg-x11-server

From 780a69aff0ff57ef813179a2f09556eaf488cdfc Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Mon, 22 Jun 2015 21:13:05 +0200
Subject: [PATCH] systemd-logind: do not rely on directed signals

Right now, Xorg does not install DBus matches for "PauseDevice" /
"ResumeDevice". Therefore, it should usually not receive those DBus
signals from logind. It is just a coincidence that systemd-logind sends
those signals in a directed manner right now. Therefore, dbus-daemon
bypasses the broadcast matches.

However, this is not ABI and Xorg should not rely on this. systemd-logind
is free to send those signals as broadcasts, in which case Xorg will
freeze the VT. Fix this by always installing those matches.

Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Keith Packard <keithp@keithp.com>
Reported-by: Jan Alexander Steffens <jan.steffens@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/xfree86/os-support/linux/systemd-logind.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/hw/xfree86/os-support/linux/systemd-logind.c b/hw/xfree86/os-support/linux/systemd-logind.c
index 69e2f673d4bb..2612d9e23bc4 100644
--- a/hw/xfree86/os-support/linux/systemd-logind.c
+++ b/hw/xfree86/os-support/linux/systemd-logind.c
@@ -507,6 +507,24 @@ connect_hook(DBusConnection *connection, void *data)
         goto cleanup;
     }
 
+    dbus_bus_add_match(connection,
+        "type='signal',sender='org.freedesktop.login1',interface='org.freedesktop.login1.Session',member='PauseDevice'",
+        &error);
+    if (dbus_error_is_set(&error)) {
+        LogMessage(X_ERROR, "systemd-logind: could not add match: %s\n",
+                   error.message);
+        goto cleanup;
+    }
+
+    dbus_bus_add_match(connection,
+        "type='signal',sender='org.freedesktop.login1',interface='org.freedesktop.login1.Session',member='ResumeDevice'",
+        &error);
+    if (dbus_error_is_set(&error)) {
+        LogMessage(X_ERROR, "systemd-logind: could not add match: %s\n",
+                   error.message);
+        goto cleanup;
+    }
+
     /*
      * HdG: This is not useful with systemd <= 208 since the signal only
      * contains invalidated property names there, rather than property, val
-- 
2.4.6