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 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/745839 Title: [Xpress 200M] compiz crashed with SIGSEGV in pthread_mutex_lock() due to compiz loading on rez > texture size _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp