Linux Mint Forums

Have you seen this page?

http://mikebeach.org/2010/04/22/how-to- ... 000-lucid/

What is the output from this command?

$ locate stdio.h

Edit: installing build-essential may supply the missing file

I'm skeptical that you'll get such different graphics hardware to work together on X.
You could try making a custom xorg.conf, there's a simple example at the end of this thread:
http://forums.linuxmint.com/viewtopic.php?f=49&t=195962

I fixed it by disabling nouveau, installing the nvidia drivers and enabling Xinerama in /etc/X11/xorg.conf In /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="nouveau.blacklist=1 quiet splash" then: $ sudo update-grub2 $ sudo mintdrivers Here's my xorg.conf: Section "ServerLayout" ...

What's the output from inxi -Fxz ?

After I used taskset to restrict the CPU affinity of Xorg, cinnamon, etc, the high CPU spike moved to the watchdog daemon, so that's a red herring I guess. But inxi -Fxz tells me that nouveau has failed, so I'll try using the nvidia driver instead... Graphics: Card-1: NVIDIA G86 [Quadro NVS 290] bus...

Hello, When using two monitors with a pair of NVIDIA Quadro cards, every so often the system (Intel Core2 Duo CPU) will freeze for a few seconds with no mouse response. When I only use a single video card I don't get this problem. When the system freezes a kernel migration process has a burst of CPU...

If you go to the Preferences Menu, select Display, and then use the "Detect Displays" button, are both monitors detected?