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Qt5 app fails creating the EGL surface - Firefly RK3288 (Mali T764)

amoreno

Hi all,

I have a Firefly board with Ubuntu 14.04, Kernel 3.10, and the Mali binaries from the package "malit76xr5p006rel0linux1fbdevtar.gz". I've built the Mali SDK OpenGL demos, and they run ok over the Ubuntu X11 desktop, obviously, they override some screen area while they are running.
 
Then I've built the Qt 5.8 framework without problems, its summary shows the QPA EGLFS Mali backend available, but when later I build any Qt based app, they don't work and show the following error:
 
EGL Error: Could not create the egl surface: error = 0x3009
 
Is possible my libgbm.so is not compatible with the fbdev version of libmali.so I am using?
But in such case, why do the Mali SDK demos work correctly?
 
Thanks in advance!
Ariel.
 
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