Quote Originally Posted by un234567 View Post
You have the 260.19 driver installed, try installing nvidia 256.53 driver. I am facing the same problem with the new nvidia driver and i get the same xorg logs. It looks like the X server is loading the vesa module instead of the nvidia module with the newer driver. Just look under DRI 2 extension and u will see tht. Currently im trying to stop this wired behavior through blacklisting vesa but for now you have to stick with 256.53
Means,you had 260.19.12 installed and after plugging in 2nd monitor
X screwed up?Ran an "nvidia-xconfig" in recovery mode e.g.?

Anyway,if you know that downgrading to 256.xx helps,I would recommend this to sonicb00m.