some workaround description is available here: http://askubuntu.com/questions/152156/how-do-i-prevent-an-external-monitor-from-shutting-off-when-closing-my-laptop-li
how to have: lid closed, external display working and internal display turned off at the same time
some workaround description is available here: http:// askubuntu. com/questions/ 152156/ how-do- i-prevent- an-external- monitor- from-shutting- off-when- closing- my-laptop- li
how to have: lid closed, external display working and internal display turned off at the same time