Problem with a big size render (Cycles)

Rendering
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1

Hi,
I need to do a big size render for a booth. When doing so in full HD (1920x1080) the render takes a long time, but finally gets done. If setting 4200px height (1,5m approx) the render is taking more time, and the final result is a plain color (environment color).

Trying it with a simple model (gold sphere) turns out to be the same result (environment color).

These are the technical specifications:
i7 3.60 Gh
32 Gb RAM
GeForce GTX 980 Ti (x2)

Any advice to solve it?
Thanks in advanced.

2

The problem is related to the resolution. Many resolutions work, some don’t. You could try some different sizes in the region of what you need.

This is on my list:

https://mcneel.myjetbrains.com/youtrack/issue/RH-44181