I think that this has to do with the video driver. The new graph uses cairo (?) and this must be rendered. This has to do the graphic card, but it the driver does not support this, the CPU must do this, which results in a very heavy CPU usage. That a new nvidia driver could fix this problem shows, that the graphics driver has to do with it.
I have for example and AMD/ATI radeonhd 3200 onboard and use the radeonhd driver and I suffer from this bug. -- System monitor causes Xorg to consume 100% CPU https://bugs.launchpad.net/bugs/187383 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
