ubuntu X display no title bar

This is because there’s problem btw the nvidia driver and the Compiz Fusio

Add the below options in xorg.conf :

Section "Device"
Identifier     "Device0"
Driver         "nvidia"
VendorName     "NVIDIA Corporation"
BoardName      "Quadro NVS 280 SD"
BusID          "PCI:1:0:0"
Option "RenderAccel" "true"
Option "Allow GLXWithCompostite"
Option "AddARGBGLXVisuals" "True"
Screen          0
EndSection