I have a laptop with Geforce 640M video and Intel i5-3317U processor(Acer Aspire M3-581TG).
Nvidia uses driver 331.113 and Intel integrated graphics uses i915. With Nvidia Prime, when I switch to Nvidia card, my performance is a lot worse than it is with Intel across various games.
When I use this command that I saw in another thread:
lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
both GPUs say they are the VGA controller, maybe that is causing some conflict?
How can I get the proper performance out of Nvidia Card?