AnsweredAssumed Answered

Blank screen running Qt X11 app with Vivante

Question asked by Marlon Smith on Jun 4, 2014
Latest reply on Jun 6, 2014 by Marlon Smith

Hi everyone,


I've used Yocto dora to build a kernel (3.0.35 4.1.0 modified wandboard kernel) and filesystem (fsl-image-gui) for a custom board based on the i.MX6S.  When I run a Qt application on the board using startx ./my_application, the application runs but the screen is black.  Certain widgets will show once they are updated (ie. if I click on a checkbox), but everything else is black.


I tried modifying xorg.conf to use Driver "fbdev" instead of Driver "vivante", but then when I run the application I get an error saying no screens found.


Does anyone know what could cause this?