File 0001-Set-XAUTHLOCALHOSTNAME-in-sessions.patch of Package sddm

From 259ec546a821f40536dc4aa2ff510a1e197b6e0d Mon Sep 17 00:00:00 2001
From: Fabian Vogt <fabian@ritter-vogt.de>
Date: Sat, 24 Oct 2020 13:57:05 +0200
Subject: [PATCH] Set XAUTHLOCALHOSTNAME in sessions

While FamilyWild avoids that hostname changes break xauth, this doesn't help
with Xtrans (used for ICE). Xtrans always uses the current host name for
setting $SESSION_MANAGER and for a successful connection this has to match
the current hostname (or $XAUTHLOCALHOSTNAME, see p_xauth.diff in xtrans)
on client connection attempts as well. By setting XAUTHLOCALHOSTNAME here,
it's likely that it equals the hostname set by the session manager later
(e.g. ksmserver).
---
 src/helper/Backend.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/helper/Backend.cpp b/src/helper/Backend.cpp
index a053310..5e6941e 100644
--- a/src/helper/Backend.cpp
+++ b/src/helper/Backend.cpp
@@ -27,6 +27,7 @@
 #include "UserSession.h"
 
 #include <QtCore/QProcessEnvironment>
+#include <QtNetwork/QHostInfo>
 
 #include <pwd.h>
 
@@ -68,6 +69,7 @@ namespace SDDM {
             env.insert(QStringLiteral("SHELL"), QString::fromLocal8Bit(pw->pw_shell));
             env.insert(QStringLiteral("USER"), QString::fromLocal8Bit(pw->pw_name));
             env.insert(QStringLiteral("LOGNAME"), QString::fromLocal8Bit(pw->pw_name));
+            env.insert(QStringLiteral("XAUTHLOCALHOSTNAME"), QHostInfo::localHostName());
 #if defined(Q_OS_FREEBSD)
         /* get additional environment variables via setclassenvironment();
             this needs to be done here instead of in UserSession::setupChildProcess
-- 
2.25.1