Created attachment 141795 [details]
I have gather the file you recommend + clinfo.log
When i use clinfo after installing the driver 18.30 it report an error.
I have also installed codexl and when i ask information, it give no result in the tab 'opencl devices'.
You can look at the end of the clinfo.log file.
I think that there is a problem when trying to access to the opencl device properties.
The error comes from clover platform.
You need to update libclc.
Compatibility with latest llvm was addressed in libclc r338898.
afaik, CodeXL does not work with clover.