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Computer connected to two monitors

Asked by: Kathleen Ward 229 views Computer August 20, 2018

Have you ever encountered a connection between two monitors, of which the monitor No. 2 only has a windows start signal when it is turned on, and there is no signal on the monitor No. 2 after the host is started. The control panel displays the dotted line in the setting, and the switch is turned on and off.

Addition: Point recognition only 1 display will show, 2 does not light

13 Answers

  1. +8Votes  

    Multi-screen display requires multiple display interfaces to implement. See if one of the display interfaces is not connected, or a wire problem.

    Brenda Wilson- August 21, 2018 |

  2. +5Votes  

    Windows supports dual screen, check connection and settings

    Debra Johnson- August 21, 2018 |

  3. +5Votes  

    It is very likely that your device does not support multiple displays

    Marie- August 21, 2018 |

  4. +8Votes  

    In general, we won’t do this, but it’s not impossible to do this.

    Jessica Wood- August 21, 2018 |

  5. +1Votes  

    Well, this should be a problem with the settings. , or need to change a splitter

    Stephanie Robinson- August 21, 2018 |

  6. +1Votes  

    This depends on whether the graphics card supports multi-screen display function, if you have VGA or HD, you can set the multi-display to be OK.

    Virginia- August 21, 2018 |

  7. +4Votes  

    After connecting the two graphics card output jacks, first test whether the two monitors are switched properly in the control panel, then open the software and let the two monitors be on different desktops. .

    Nancy Watson- August 22, 2018 |

  8. +7Votes  

    The new graphics card VGA interface does not necessarily support

    Amy James- August 22, 2018 |

  9. +4Votes  

    You two screens should be bad graphics card. It is recommended to check the driver of your laptop modification screen

    John Brown- August 22, 2018 |

  10. +2Votes  

    You are a problem with the splitter! I don’t have this problem!

    Janet Carter- August 22, 2018 |

  11. +1Votes  

    The problem you said seems to be that the sub-monitor computer does not recognize it. Try installing the sub-display driver.

    Donald Turner- August 22, 2018 |

  12. +1Votes  

    It doesn’t matter when you turn it on. The main and sub-display settings are expanded

    Question: But the sub-displays are all virtual, not selected

    Frank Harrison- August 23, 2018 |

  13. +6Votes  

    1. 2 interfaces of the computer’s graphics card Connect one monitor to each, and connect the two monitor power switches when connected.

    2. After connecting, the computer will boot into the system, then right click on the desktop, enter the screen resolution interface, select “Extend these displays” in the multi-screen display drop-down menu and click OK.


    Question: But the sub-displays are all virtual, not selected

    Kimberly Wright- August 24, 2018 |