It works now... solution is on bottom...
since my roommate has a new notebook with a NVidia GT 670M i wanted to check if its useful to mine with it now. So i set up an account at pool.itzod.ru and used the standard commands they suggested.
I tried with -I 9 but it failed everytime. The driver crashed. But under 9 it works fine at least. But i wondered by its only 14MH/s. It should be 112MH/s judging from the tables. So i checked GPU-Z and found that only the desktop-GPU is working. Optimus isnt enabling the GTX. And this gpu works with 14MH/s. I then tried forcing the use of the GTX for the cgminer.exe. But it doesnt change. Its still using the desktop-gpu but with even less MH/s. Its 1-5 only.
What can i do to force the use of the gtx 670M? And is it maybe even possible to use both gpus at the same time?
I wonder why it crashed with -I 9 when its the standard. But maybe it will work with the normal GPU with such values.
Does one have disadvantages using stratum with gpu or isnt there a disadvantage?
Edit: I checked out the command -n and got this result:
CL Platform 0 vendor: Intel(R) Corporation
CL Platform 0 name: Intel(R) OpenCL
CL Platform 0 version: OpenCL 1.1
Platform 0 devices: 1
0 Intel(R) HD Graphics 4000
CL Platform 1 vendor: NVIDIA Corporation
CL Platform 1 name: NVIDIA CUDA
CL Platform 1 version: OpenCL 1.1 CUDA 4.2.1
Platform 1 devices: 1
0 GeForce GTX 670M
Unable to load ati adl library
1 GPU devices max detected
USB all: found 6 devices - listing known devices
No known USB devices
Intel HD Graphics 4000 is the normal GPU and GeForce GTX 670M is the fast GPU. Optimus should switch between it when speed is needed. It seems to not work.
So i tried the param -d 1 to use the second GPU but it told me there is no device.
Edit2: It works now. I used the param --gpu-platform 1 -d 0 and now the real gpu is mining...
I will test if i can mine with the other too now. But at least it runs now...