Fedora 21 64-bit, GeForce GT 640
Short description of error
Objects with OpenSubdiv subsurf modifier aren't visible in BI "rendered" viewport.
Exact steps for others to reproduce the error
- Ensure Blender Render is selected.
- Add subsurf to the default cube.
- Switch to Rendered viewport - the object is visible.
- Enable the OpenSubdiv checkbox - now it's not.
- Switch to Cycles - now it's visible again.