I seem to have lost ability to select NVidia (and cycles renderer engine) after some hardware fixes (changes were made to replace components with same components, so in theory there should be no difference at all) and Windows updates. It was working long time before (I haven't had much time to play with Blender in last few months).
Note: I have seen this replay. I followed it, it still doesn't work.
I am using Windows 8.1 on a Lenovo ThinkPad. I have two graphics cards:
They both seem to operate fine (as far as I can tell, NVidia Control Panel works fine, and Intel's one too).
I have just installed newest NVidia drivers from their website. I have just installed newest Blender (2.76b) using msi installer.
I have tried running it explicitly through option to use NVidia graphics:
And I still can't select Cycles renderer:
And I can't select anything else than CPU for
I don't get any trace in Blender's system console that would indicate any issues. NVidia's GPU activity tool seems to pick up on Blender using its GPU:
Interestingly if I start it like above, with NVidia option, I can select different subdiv algorithms:
However if I run it selecting Intel card I get no choice:
So it does seem to make a difference which one I choose to run Blender through.
How can I debug what's wrong?