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Graphics, Gaming, and VR forum Qt5 app fails creating the EGL surface - Firefly RK3288 (Mali T764)

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

amoreno over 7 years ago

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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0 Myy over 7 years ago in reply to amoreno

Alright, here's a patch that should enable the Mali drivers (if integrated into the kernel) on 4.12-rcX kernels.

https://raw.githubusercontent.com/Miouyouyou/MyyQi/master/patches/kernel/v4.12/0300-Adding-Mali-Midgard-and-VCodec-support-to-Firefly-RK.patch

I also provided the appropriate precompiled DTB files in https://github.com/Miouyouyou/MyyQi/tree/master/boot , along with kernel images and the related modules in https://github.com/Miouyouyou/MyyQi/tree/master/lib .

That said, 4.12-rcX do not have support for some unrelated drivers like the video compression/decompression.
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0 Myy over 7 years ago in reply to amoreno

Alright, here's a patch that should enable the Mali drivers (if integrated into the kernel) on 4.12-rcX kernels.

https://raw.githubusercontent.com/Miouyouyou/MyyQi/master/patches/kernel/v4.12/0300-Adding-Mali-Midgard-and-VCodec-support-to-Firefly-RK.patch

I also provided the appropriate precompiled DTB files in https://github.com/Miouyouyou/MyyQi/tree/master/boot , along with kernel images and the related modules in https://github.com/Miouyouyou/MyyQi/tree/master/lib .

That said, 4.12-rcX do not have support for some unrelated drivers like the video compression/decompression.
Cancel
Up 0 Down

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