tst_QTextLayout::softHyphens(16) failed on Wayland

  request:
    family: Ubuntu [-- any --], script: 2
    styleName: -- any --
    weight: 400, style: 0
    stretch: 0
    pixelSize: 16
    pitch: *
QDEBUG : tst_QTextLayout::softHyphens(16) qt.text.font.match:   REMARK: looking for best foundry for family 'Ubuntu' [1]
QDEBUG : tst_QTextLayout::softHyphens(16) qt.text.font.match:           looking for matching style in foundry 'DAMA' 22
QDEBUG : tst_QTextLayout::softHyphens(16) qt.text.font.match:           best style has distance 0x0
QDEBUG : tst_QTextLayout::softHyphens(16) qt.text.font.match:           found smoothly scalable font (16 pixels)
QDEBUG : tst_QTextLayout::softHyphens(16) qt.text.font.match:           found a match: score 0 best score so far ffffffff
FAIL!  : tst_QTextLayout::softHyphens(16) 'qAbs(linefit - qCeil(4 * xAdvance + shyWidth)) <= 1.0' returned FALSE. ()
   Loc: [/home/liangqi/qt/qtbase/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp(2599)]
PASS   : tst_QTextLayout::cleanupTestCase()
Totals: 4 passed, 1 failed, 0 skipped, 0 blacklisted, 29ms