I’m looking everywhere but I can’t find the solution.
I’m using blender 2.79 and there is not support for AMD Radeon r9 270x.
The card wasn’t cheapest about two years ago and there is not a problem with games and I do not have any extra money to buy a new one.
Is there a problem with AMD drivers or not support from blender site any more?
If i am not mistaken 270 is a relabeled 7950 ( 280 == 7970 ).
Those are gcn 1 cards and not supported in cycles.
Afaik you could reenable while missing some features.
Other way round:
Normally cycles uses features only available in the so called amd gcn 2.0 capabilities.
Thus a gcn 1.x gpu would not fullfill cycles requirements.
But if you dissable some features in kernel_types.h, gcn 1.x would work still.
TBH i dunno which those are and if its worh it.
Bliblubl or Brecht should know exactly.
If nothing gives you acceptable usage, you might consider using lux(core)render which still works
down to gcn 1.x ( 7950 and better ).
Cycles doesn’t use things from gcn2. All the fault is in the OpenCL compiler - AMD uses the old compiler for gcn1, and looks like will never update it. Currently cycles requires OpenCL 1.2, but last time I checked only OpenCL 1.1 was needed.