AnsweredAssumed Answered

Is opengl with Qt on i.MX6Q is slow?

Question asked by Abin Joseph on Mar 12, 2018
Latest reply on Mar 12, 2018 by igorpadykov

Hi all,


I am new to embedded with Qt.


I have a Qml application, in which I am trying is to grab whenever a screen change occurs and this is time critical.

I tried using Qml grab function as well as QQuickRenderControl grab function.

Both on i.MX6Q device takes almost 2 seconds. While on PC it takes only ~50 ms.


The screen resolution which I display my screen is 1920x1080.

Board is Sabre i.MX6Q with Yocto krogoth.


It seems like opengl is slow than expected on a sabre board. 


I would like to know if there is any way to grab the screen in a faster method, say in milli seconds.


Thanks in advance!