i.MX Processorsのトピック回复： QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled

QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled

alonghong — Mon, 01 Aug 2022 06:58:28 GMT

Hi Sir

I use the iMX8QM EVK and follow imx-yocto-L4.14.98_2.0.0_ga user'guide.

I can success to use SV3D-1.1 sample.

Now，I want to use QT to design the UI, so I use fsl-image-qt5-validation-imx to support QT5.

and I can use cross compile to test the qt project on iMX8 EVK.

But, when I use the OpenGL like QOpenGLWidget or QGLWidget on QT project, the terminal will show

as below:

"QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled'

I check the fsl-image-qt5-validation-imx image QT5 example, the path is /usr/share/qt5/examples/opengl/hellogl2/./hellogl2.

It has the same problem.

Please kindly to help me to solved this question

thanks a lot

Best Regards.

Bio_TICFSL — Tue, 02 Aug 2022 13:42:52 GMT

Hello alonghong,

You need to use the L5.4.70 at least to use OpenGL with QT.

Regards

alonghong — Thu, 04 Aug 2022 06:05:37 GMT

Hi Bio_TICFSL

I solved this issue, the solution is when I execute my test application, I need to key ./test -platform wayland-egl.

and then the application is work.

but I find another question is when I move the yuv data to y , u , v array and use the opengl to paint image.

the action spend a lot of time to complete. I don't know what's happened.

please kindly to help me solve this question

thanks a lot

Best Regards.