Normal blend operation causes image to turn all black
There's some funny behaviour happening on my system i noticed when adding a denoise instance with blend mode activated.
During editing of the attached image the picture went all black when adding a normal blend on the denoise (non-local means) instance.
This would only happen on even numbers of the blend opacity slider.
When trying to figure out what might be causing this i turned off the equalizer module with the result that the image now turns black on odd numbers instead.
Further, I noticed that changing the size of the work area, for instance by minimizing one of the side bars, the behaviour will swap from even to odd numbers or vice-versa again.
this is darktable 2.7.0+260~gb94a93696
It would be interesting to know if this just on my system or if others can reproduce this too.
I can provide further debug output if required.
#2 Updated by Philipp Christ 29 days ago
I just tried with --disable-opencl and everything is fine then.
I'm running the kernel radeon drivers but with opencl from amdgpu-pro 18.50.
The attached output is with opencl enabled and -d all just for good measure.
Anything else I should try to narrow this down?