Problem: I recently had a malware attack on my computer that has been resolved see: here
. After some help from Gringo we managed to resolve the malware issues and the machine has been running pretty normally the last few days. The one issue that has occurred is that the laptop I use runs an integrated intel graphics card with a GT555M card using Nvidia optimus.
After fixing the malware issues, I noticed that graphically intensive programs such as games and some scientific software are somewhat struggling with the visual demands or crash on loading in the case of Battlefield 3. Secondly, I tried downloading a tool 'NvOptimusTestViewer64.exe' to see if the GT555M was being activated by the software once launched or if I could force the software to use the GT555M. All of these fail to show any response in the GPU and interestingly if I click the 'show optimus overlay' box in the tool I get the following error: 'no support in nvcpl to update driver registry. use latest driver'. Googling the error seems to suggest it's possibly some lingering damage from the malware.
I should also note, I have downloaded some of the 'cool stuff' programs from Nvidia's website to see if they would run. However, all the programs state I do not have 'cuda enabled gpu', so it's as though these programs only see the integrated graphics card.
Attempted Solutions: I have uninstalled and re installed both graphics cards from scratch using the dell manufacturers drivers from dell support. I have then tried upgrading the nvidia drivers to the latest release. Both these solutions have failed to resolve the issue. I've tried forcing applications to use the GT555m this has failed.
Device manager shows no items with an exclamation mark next to them or any other hardware issues and successfully detects both display adapters.
I'm at a loss as to what could possibly be wrong at this point so any help would be greatly appreciated!