I'm currently running LM 14 Nadia on a laptop, with a Intel C2D P8700 and a Nvidia GT240M. When idle, the cpu-usage varies between 20-50% constantly, for both cores. Looking at the processes in the System Monitor, it seems that Xorg (25-35%) and Cinnamon (~10%) are the culprits. I assume that these loads are unusually high, for a system that is essentially idle.
I googled the problem, but the suggested fixed do not seem to work for me. I'm using the nvidia-current drivers, and they seem to work, and GPU rendering is used instead of software rendering. The poblem seems like the one described here: http://blog.linuxmint.com/?p=2234, but MDM 1.08 is installed, and the problem persists.
Is there anyone who has an ideahow I can solve this? Or am I just expecting too much from my system?