Problem with Qualcomm Adreno GPU

[Agostino44]

Good morning,
we have a Surface with Qualcomm Adreno X1-85 Gpu, a secondary monitor connected with hdmi and the monitors are settings with extended.
Our app use flyleaf for reproduce a sequence of videos on one or more window at the same time placed on secondary monitor, meanwhile the main window is on the primary monitor.
After a few dozen minutes of playing the video sequence, it seems that the rendering is blocked and the whole UI thread is blocked, you can no longer interact and the only thing that can be done is to close the process from task manager.
On PC with NVidia or Intel GPU seems all ok.
Any suggestion?
Thanks,

[SuRGeoNix]

Are you sure that this is a GPU issue? You might somehow blocking the UI thread from your code with events / property changed?
Otherwise, this sound more like d3d11 on multiple monitors issue. I would try to debug it with 'Enable native code debugging' and see what happens on d3d11 layer.

I would also check if the Surface has an embedded GPU and use the as default from bios the Qualcomm (similarly for laptops). As this can cause a number of issues if Flyleaf does not recognize the GPU properly. You could even try to force it from Config, or disable HW acceleration and see if that fixes it. You could try more GPU/Rendering options. Eg. wondering what kind of display Surface uses, might need to change the output format/bits/buffers etc.

[Agostino44]

I thought it was a GPU related problem because on other machines with different gpu the app runs correctly.