topic Re: OpenGL ES support on i.MX8m mini EVK in i.MX Processors

OpenGL ES support on i.MX8m mini EVK

frk — Fri, 09 Aug 2019 08:13:49 GMT

Hello all,

I'm trying to use the NXP Evaluation Kit for i.MX8 M Mini.

i.MX 8M Mini Evaluation Kit | NXP

But I've got an issue using graphic acceleration.

Indeed, when I try the Qt5_CinematicExperience, the FPS displayed are pretty low (about 18fps).

Is there anything to enable to have better performance?

I've build the sdcard image with the following steps (based on i.MX_Yocto_Project_User's_Guide.pdf) :

repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-sumo -m imx-4.14.98-2.0.0_ga.xml
repo sync
MACHINE=imx8mmlpddr4evk DISTRO=fsl-imx-wayland source fsl-setup-release.sh -b bld-imx8mmlpddr4evk-way
bitbake fsl-image-qt5-validation-imx

Next on the board :

root@imx8mmlpddr4evk:~# Qt5_CinematicExperience -platform wayland-egl

I'm using an HDMI screen to display the application.

On another aspect, is there any way to use direct framebuffer like we can do on i.MX6 board?

Having the Wayland desktop displayed does not seem adequate for industrial purpose.

Re: OpenGL ES support on i.MX8m mini EVK

Bio_TICFSL — Tue, 13 Aug 2019 16:45:53 GMT

Hello frk,

Sorry, there is no way to use frame buffer in i.MX8Mmini, at least in L4.14.98 BSP. You settings are correct don´t know why you are getting 18 fps, check the overall performance with vprofiler in your gpu.

regards

Re: OpenGL ES support on i.MX8m mini EVK

frk — Wed, 14 Aug 2019 07:43:39 GMT

Hi,

Thanks for this reply.

We've got no vprofiler on the board.

Is there any specific bitbake receipe to include it?

By the way, when we run vivante samples, that are in /opt/viv_samples/vdk, everything run @60fps.

That makes me think that egl/vivante support for QT5.10 is not enabled/optimized.

Best regards