Hi I am trying to put up 4 independednt video windows in a bigger window (kind of like a video wall) in sections. Currently I am able to view the videos individually, however when I enable all 4 of them, all of the individual windows update independent of each other and the end effect is flickering on all windows , enough to give you a headache . How to solve this issue? I tried to overload the widget's (in my case i am using the main window widget to draw on all the videos) paint event, but it doesnt look like I am getting any paint events. Should I be using a different kind of widget? I tried using a QGraphicsView and QFrame, doesnt make a difference. Note that in this case, the display chip is updating the video window.

TIA