I use UBuntu 14.04 LTS. I have purged all nvidia proprietary drivers and currently my system use Nouveau driver. Here is an output from glxinfo | grep OpenGL :
when using nvidia propietary drivers
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 970/PCIe/SSE2
OpenGL core profile version string: 4.3.0 NVIDIA 346.59
OpenGL core profile shading language version string: 4.30 NVIDIA via Cg compiler
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.5.0 NVIDIA 346.59
OpenGL shading language version string: 4.50 NVIDIA
OpenGL context flags: (none)
OpenGL profile mask: (none)
OpenGL extensions:
when using nouveau driver
OpenGL vendor string: VMware, Inc.
OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)
OpenGL version string: 3.0 Mesa 10.6.0-devel
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
When I run a gpu benchmark triangle test I get following results:
nvidia driver: 304455 points, 5073fps
nouveau driver: 8466 points, 142 fps
There is a massive drop in performance. Can I change something in nouveau settings to get better results ?
Edit1
glxinfo |egrep -w 'rendering|renderer' :
- direct rendering: Yes
- OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)
I don't use the system in Virtual Machine.