AM335x QT5 SDK6 Fonts rendered as empty squares

shriram

Hallo,

I am shifting to Qt 5.1.1 and SDK 6. I successfully compiled QT5 and copied the install folder to the required directory. QT5 was configured with fontconfig (fontconfig...yes in configure output).

I compiled a simple test application with a pushbutton and textedit with default font in qtcreator.

After executing the application, the fonts are rendered as empty squares (i.e) instead of characters, there are just empty squares with black border.

there is no fonts folder present in qtinstallfolder/lib/. But there is a fonts folder under /usr/lib/fonts. I tried setting QT_QPA_FONTDIR to /usr/lib/fonts. Still the same problem.

Hardware is a custom AM335x_SK based board. Display and touch input working properly.

Can anyone guide me in solving this ?

Thanks a lot and best regards.

Ram

over 11 years ago

0 Miroslav Kiradzhiyski XID over 11 years ago

TI__Mastermind 25235 points

Hi,

Can you please run your application with "strace" and check where the font is loaded from:

strace <your_app> | busybox grep font

You may post the result as a log file here.

Best regards,
Miroslav

0 shriram over 11 years ago in reply to Miroslav Kiradzhiyski XID

Intellectual 705 points

Hi Miroslav,

Thanks a lot for your tip. Strace revealed that it was searching for fonts in /usr/share/fonts but my fonts were in /usr/lib/fonts. I copied the fonts folder to /usr/share and I am able to see text being rendered.

Is there any env variable to specify font search directory ?

Thanks a lot again.

Ram

0 Miroslav Kiradzhiyski XID over 11 years ago in reply to shriram

TI__Mastermind 25235 points

Does exporting QT_QWS_FONTDIR work?

I also found this:

Note that the application will look for the /lib/fonts/ directory relative to the path set using the -prefix parameter when running the configure script; ensure that this is a sensible path in the target device environment. See the installation documentation for more details.

Best regards,
Miroslav

0 shriram over 11 years ago in reply to Miroslav Kiradzhiyski XID

Intellectual 705 points

Hi Miroslav,

Thanks for a quick response.

No Setting QT_QWS_FONTDIR or QT_QPA_FONTDIR does not work.

Also copying font to my /sitara/qt5install/lib/fonts also does not work. /sitara/qtinstall is my -prefix directory during configure of qt5.

As of now only /usr/share/fonts is being searched in strace because I think my /etc/fonts/fonts.conf in board points to /usr/share/fonts.

I have attached the strace when the fonts are not functioning (i.e) no fonts present /usr/share/fonts.

Thanks again.

Ram

1738.qt5_strace_nofonts.txt

0 Miroslav Kiradzhiyski XID over 11 years ago in reply to shriram

TI__Mastermind 25235 points

Hi,

Try asking in the Qt-project forums: http://qt-project.org/forums

Best regards,
Miroslav

0 shriram over 11 years ago in reply to Miroslav Kiradzhiyski XID

Intellectual 705 points

Hi Miroslav,

Thanks for your support. I have my application up and running with your tip.

I am marking your first post as answered.

Ram

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AM335x QT5 SDK6 Fonts rendered as empty squares