VNC Server in Virtual Mode appears to hang or you see a grey screen because a desktop environment
realvncvirtualmode灰屏解决方法转自:https://support.realvnc.com/Knowledgebase/Article/View/345/0/vnc-server-in-virtual-mode-appears-to-hang-or-you-see-a-grey-screen-because-a-desktop-environment-cannot-be-load