i.mx6q openGL update screen abnormal

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i.mx6q openGL update screen abnormal

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linya
Contributor II

sometime, i.mx6q openGL update screen abnormal.

The screen don't update after call glSwapBuffers();

I need to call glFlush explicitly to avoid this problem.

The render buffer is active but it is not update to screen.

I save the render buffer through glreadpixels after this issue happend.

I check the saved image, the render buffer is update normal , but it is not update to screen.

My software version is:

yocto-fsl imx-3.14.52-1.1.0_ga

GPU library is imx-gpu-viv-5.0.11.p8.4-hfp.bin

GPU work on fb mode. There are no x11 or wayland.

This issue disappear on any one of below situation

1.downgrade the GPU library version to imx-gpu-viv-5.0.11.p8.3-hfp.bin

2.insert some debug message in my render code.

3.Call glFlush function explicitly frame by frame.

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gusarambula
NXP TechSupport
NXP TechSupport

Hello Lin Ya,

Are you still seeing this behavior? Would it be possible for you to share a test case in order to reproduce this issue?

Regards,

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