Abdelrazak Younes wrote:

> Hello,
> 
> Mathed doesn't seem to work with the qt4 frontend. Symbols are not
> displayed at all, equations just show empty blue square.

Here I get every symbol displayed in red.

> Is it due to some recent changes? I know I haven't touch anything at all
> on the pixmap painting (QLPainter).

But math is rendered with fonts. The output of -dbg font tells me that the
qt4 font handdling in LyX is broken:

Font 'Sans Serif, Bold, Upright, Normal, yellow, Emphasis Off, Underline
Off, Noun Off, Language: German' matched by
Multi
The font has size: 15
This font is NOT an exact match
XFLD: Multi
Font 'Roman, Medium, Upright, Normal, none, Emphasis Off, Underline Off,
Noun Off, Language: German' matched by
Multi
The font has size: 15
This font is NOT an exact match
XFLD: Multi
Looking for font family eufm10 ... raw: Multi
alleged fi family: Albany AMT
raw: Multi
alleged fi family: Albany AMT
raw: Multi
alleged fi family: FreeSans
 FAILED :-(
Looking for font family cmsy10 ... raw: Multi
alleged fi family: cmsy10
raw: Multi
alleged fi family: cmsy10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Looking for font family cmmi10 ... raw: Multi
alleged fi family: cmmi10
raw: Multi
alleged fi family: cmmi10
raw: Multi
alleged fi family: cmmi10
 FAILED :-(
Looking for font family symbol ... raw: Multi
alleged fi family: Standard Symbols L
raw: Multi
alleged fi family: Standard Symbols L
raw: Multi
alleged fi family: Dustismo
 FAILED :-(
Looking for font family cmr10 ... raw: Multi
alleged fi family: cmr10
raw: Multi
alleged fi family: cmr10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Looking for font family cmex10 ... raw: Multi
alleged fi family: cmex10
raw: Multi
alleged fi family: cmex10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Looking for font family msam10 ... raw: Multi
alleged fi family: msam10
raw: Multi
alleged fi family: msam10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Looking for font family msbm10 ... raw: Multi
alleged fi family: msbm10
raw: Multi
alleged fi family: msbm10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Looking for font family wasy10 ... raw: Multi
alleged fi family: wasy10
raw: Multi
alleged fi family: wasy10
raw: Multi
alleged fi family: Albany AMT
 FAILED :-(
Font 'Roman, Medium, Italic, Normal, math, Emphasis Off, Underline Off, Noun
Off, Language: German' matched by
Multi
The font has size: 15
This font is NOT an exact match
XFLD: Multi


Welcome to Qt font hell :-)


Georg

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