--- sddm-0.12.0/src/common/Session.cpp~	2015-09-07 13:40:47.000000000 +0300

+++ sddm-0.12.0/src/common/Session.cpp	2015-09-07 13:40:41.000000000 +0300

@@ -150,6 +150,14 @@ namespace SDDM {

         file.close();

+	if( m_desktopNames.isEmpty() ) {

+	    m_desktopNames = desktopSession();

+	    if (m_desktopNames.contains(QStringLiteral("PLASMA"), Qt::CaseInsensitive)

+		|| m_desktopNames.contains(QStringLiteral("KDE"), Qt::CaseInsensitive) ) {

+		m_desktopNames = QStringLiteral("KDE");

+            }

+	}

+

         m_type = type;

         m_valid = true;

     }