Hanno Schwalm

There seems to be something "even-more-fishy" involved here, investigating...

@kofa73 yes `opencl_synch_cache` has been removed some versions ago, it didn't really work and we now have the pipecache holding data. I couldn't think of anything where OpenCL might be...

There was an issue in 4.8 for jpeg (in general all 8bit) exports that has been fixed in 4.8.1 You might try to compile yourself to check ...

Ok, this seems to be the same issue related to tiled scaling at the end of the processing pipe.

I have understood that you can only reproduce with that specific module. There is another issue that would explain the garbled output. and that issue has been understood and will...

You really don't have to beg for my understanding :-) 1. Not having earlier issues just means i did not get hands on any log file. 2. Missing your darktable...

The provided log shows two cl platforms which it probably not correct and might the reason for the issue. don't know how you did that but that is very likely...

It shows two drivers for one card in the darktable log. That's clearly not ok.

Closing this for now, feel free to open a new issue if issue persists in 4.6.1

We have had a load of amd opencl and arch based distros related problems plus bad local builds. To check this we need at least a proper log with -d...