System Information
Operating system: Linux-5.4.44-1-MANJARO-x86_64-with-glibc2.29 64 Bits
Graphics card: AMD VERDE (DRM 2.50.0, 5.4.44-1-MANJARO, LLVM 10.0.0) X.Org 4.5 (Core Profile) Mesa 20.0.7
Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-08-04 08:09, hash: rBf5eae9027776
Worked: version: 2.91.0 Alpha, branch: master, commit date: 2020-07-26 15:28, hash: rB9905db5557e9
After that version I can't test because of T79347 that was fixed by rB848cbe889b63 and there the problem is already present, so it could have been introduced by rB848cbe889b63 or somewhere in between.
Short description of error
Freestyle render completely black
Exact steps for others to reproduce the error
In the default scene activate Freestyle
Press render
image is completely black

