Test method: 1. Replace the connecting wire to eliminate the possibility of wire failure. 2. Replace the notebook or projector to eliminate the possibility of projector or notebook failure. 3. There is nothing wrong with the equipment, that is, the settings are not debugged well. Use the key combination "FN key+projection key" (the projection key is usually on F4) to switch the screen display mode. Among the four ways that appear, "disconnecting the projector" will cause the notebook to be disconnected from the projector. Remove this option and the screen will be displayed.
Beijing Microfilm World Culture Media Co., Ltd. is a joint venture established by Beijing Microfilm Times Technology Co., Ltd. (hereinafter referred to as Microfilm Times) and Beijing CIC Video Culture Media Co., Ltd. (hereinafter referred to as CIC Video) on 20 15 165438 10. Beijing Weiying Tianxia Culture Media Co., Ltd. relies on the rich resources of strong alliance to build a film and television map step by step, strive to build a "mobile phone movie" mobile client, constantly expand the online and offline markets, strive to become the first brand of domestic digital cinema, establish a movie community that users like, and form a digital cinema ecosystem.