Comment 13 for bug 745839

Update: I just tried stacking the extended display in a top-bottom layout as suggested, but compiz crashes (no artifacts).

$ compiz --replace &
[1] 31095
Backend : gconf
Integration : true
Profile : default
Adding plugins
Initializing core options...done
Initializing bailer options...done
Initializing detection options...done
Initializing composite options...done
Initializing opengl options...done
Initializing decor options...done
Initializing mousepoll options...done
compiz (core) - Error: Plugin 'text' not loaded.

compiz (shift) - Warn: No compatible text plugin loaded
Initializing shift options...done
Initializing gnomecompat options...done
Initializing place options...done
Initializing snap options...done
Initializing resize options...done
Initializing wall options...done
Initializing vpswitch options...done
Initializing move options...done
Initializing animation options...done
Initializing expo options...done
Initializing ezoom options...done
Initializing workarounds options...done
Initializing staticswitcher options...done
Initializing fade options...done
compiz (core) - Error: Plugin 'text' not loaded.

compiz (ring) - Warn: No compatible text plugin loaded
Initializing ring options...done
Initializing scale options...done

[1]+ Segmentation fault (core dumped) compiz --replace