GFXBench OpenGL ES 3.1 not executing on Nougat

Hi, There,
I have run the benchmark and it reports, that Open GL ES 3.1 is not supported.
Same is reported on the official site.
Other Amlogic s912 boxes do run this test and also it seems is suported by MALI820.
So why is the limitation ?

Best Regards, Chavdar

I hope Khadas help answer this one.
Only the Android builds have the opensource GPU drivers installed.