- 
    
Bug
 - 
    Resolution: Done
 - 
    
P3: Somewhat important
 - 
    5.11, 5.15, 6.0, 6.1, 6.2
 - 
    None
 - 
    Ubuntu 19.04
 
- 
        
 - 
        72931f4920 (qt/qtbase/dev) d600a68e65 (qt/qtbase/6.2) 72931f4920 (qt/tqtc-qtbase/dev) a0abf81adc (qt/qtbase/6.3) d600a68e65 (qt/tqtc-qtbase/6.2) a0abf81adc (qt/tqtc-qtbase/6.3) 28e73a91e1 (qt/tqtc-qtbase/5.15) d600a68e65 (qt/tqtc-qtbase/6.2.4)
 
when we call QPrinter::setDuplex() , the printdilalog not effective, see video.mp4
the document QPrinter::setDuplex() say: Enables double sided printing based on the duplex mode
but the source code say, duplex mode explicitly set by user, QPrint::DuplexAuto otherwise(see:https://github.com/qt/qtbase/blob/dev/src/printsupport/dialogs/qprintdialog_unix.cpp#L260-L262)
so, QPrinter::setDuplex() Should it be validated? Or we need to clarify the document
| For Gerrit Dashboard: QTBUG-99504 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V | 
| 389740,15 | Fix UI mismatch when QPrinter::setDuplex | dev | qt/qtbase | Status: MERGED | +2 | 0 | 
| 396650,2 | Fix UI mismatch when QPrinter::setDuplex | 6.3 | qt/qtbase | Status: MERGED | +2 | 0 | 
| 396651,2 | Fix UI mismatch when QPrinter::setDuplex | 6.2 | qt/qtbase | Status: MERGED | +2 | 0 | 
| 396679,2 | Fix UI mismatch when QPrinter::setDuplex | tqtc/lts-5.15 | qt/tqtc-qtbase | Status: MERGED | +2 | 0 |