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-rw-r--r--src/plugins/printsupport/cups/qppdprintdevice.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/plugins/printsupport/cups/qppdprintdevice.cpp b/src/plugins/printsupport/cups/qppdprintdevice.cpp
index 75e8a8bf26..7a6acf8b78 100644
--- a/src/plugins/printsupport/cups/qppdprintdevice.cpp
+++ b/src/plugins/printsupport/cups/qppdprintdevice.cpp
@@ -387,6 +387,9 @@ void QPpdPrintDevice::loadDuplexModes() const
// If still no result, or not added in PPD, then add None
if (m_duplexModes.size() == 0 || !m_duplexModes.contains(QPrint::DuplexNone))
m_duplexModes.append(QPrint::DuplexNone);
+ // If have both modes, then can support DuplexAuto
+ if (m_duplexModes.contains(QPrint::DuplexLongSide) && m_duplexModes.contains(QPrint::DuplexShortSide))
+ m_duplexModes.append(QPrint::DuplexAuto);
m_haveDuplexModes = true;
}