I think it could be an incompatibility issue with your ageing system.
Have you tried installing any later drivers after 15.11 Beta?
I decided to try other versions, as you mentioned and now I installed Crimson ReLive Edition 17.2.1 and it´s working. Thanks a lot for your suggestion.
Before tha I tested the following drivers that gave me black screen:
Crimson ReLive Edition 17.5.1 Optional
Crimson ReLive Edition 17.4.4 Optional
Crimson ReLive Edition 17.4.3
Thanks for your help
Really glad to hear that. In order to help others with a similar problem to find this answer quickly, we have locked the discussion to keep it focused on the issue you reported.