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AM4378: Animation is not smooth in display

Veysel Oguz
Prodigy 150 points
Part Number: AM4378

Hi, 

We are using am437x with processor-sdk-06.03.00.106. There is a smoothness issue in animations on display. We are trying with a sample QT application.

On the other hand, we do not see this issue when we use version processor-sdk-06.01.00.08. 

Below is the working case ( processor-sdk-06.01.00.08) logs when we triggered the QT application:

Using Wayland-EGL
wlpvr: PVR Services Initialised
Non-blocking swap buffers not supported. Subsurface rendering can be affected.
wlpvr: Creating Wayland Client surface 2 buffers for process pid=1196!
Non-blocking swap buffers not supported. Subsurface rendering can be affected.
wlpvr: Creating Wayland Client surface 2 buffers for process pid=1196!
Using the 'wl-shell' shell integration
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
Non-blocking swap buffers not supported. Subsurface rendering ca[ 71.159189] alloc_contig_range: [9d089, 9d08a) PFNs busy
n be affected.
wlpvr: Creating Wayland Client surface 2 buffers[ 71.170493] alloc_contig_range: [9d089, 9d08a) PFNs busy
for process pid=1196!
wlpvr: Creating Wayland Client surface 2 buffers for process pid=1196!

And below is the problematic one (processor-sdk-06.03.00.106), which animation is not smooth at all:

Using Wayland-EGL
Using the 'wl-shell' shell integration
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()

I can see that in working case, there is a service called wlpvr additionally. Can you please help us to fix this issue on processor-sdk-06.03.00.106 ? 

Thanks in advance,

Veysel