ho seguito la guida che hai postato, quando arrivo al comando compiz --replace prima scompaiono i margini alle finestre e poi ricompaiono i vecchi margini.
Se do il comando dalla shell e non con Alt+F2, il pc mi restituisce questo:
codice:
giuseppe@giuseppe-desktop:~$ compiz --replace
Checking for Xgl: not present.
Detected PCI ID for VGA: 02:00.0 0300: 10de:0163 (rev a1) (prog-if 00 [VGA])
Checking for texture_from_pixmap: present.
Checking for non power of two support: present.
Checking for Composite extension: present.
Comparing resolution (1024x768) to maximum 3D texture size (4096): Passed.
Checking for nVidia: present.
Checking for FBConfig: present.
Checking for Xgl: not present.
Starting gtk-window-decorator
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
(gtk-window-decorator:16816): Wnck-WARNING **: Unhandled action type (nil)
Segmentation fault (core dumped)