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Connecting Dual Monitors to Laptop: Independent Screens, Core Work & Adapter Guide

eryk.tomaszewski 21225 21
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  • #1 16204134
    eryk.tomaszewski
    Level 8  
    Hi, I would like to connect two monitors to my laptop, I know it is possible. but tell me, is this adapter enough? Connecting Dual Monitors to Laptop: Independent Screens, Core Work & Adapter Guide

    and I have a question, if I connect via this adapter, will these monitors be independent of each other, I mean to work on one in core, and on the other, for example, to have a forum or YouTube open, I do not want to switch windows.
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  • #2 16204145
    Kolobos
    IT specialist  
    It will be the same on both.
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  • #3 16204151
    eryk.tomaszewski
    Level 8  
    So that I need something else?
  • #4 16204172
    Kolobos
    IT specialist  
    What kind of laptop is it? Has hdmi output?

    If so, connect one monitor to vga and the other to hdmi.

    You can also use a usb adapter with vga / hdmi / dvi port.
  • #5 16204184
    sanfran
    Network and Internet specialist  
    Sure, two monitors from a laptop are possible, but then you need a docking station. If the laptop does not have ports to support a dedicated docking station (DELL, HP, LENOVO business models and many others) then look for a universal USB docking station.

    Kolobos wrote:
    If so, connect one monitor to vga and the other to hdmi.


    I wouldn't be so sure. I was working on a DELL VOSTRO 3560 and it can't do that. I don't remember anymore, but it either displays two of the same, or it deactivates VGA when connecting HDMI. To work on two monitors, I needed a universal docking station.
  • #6 16204198
    eryk.tomaszewski
    Level 8  
    Dell Latitude e6240 laptop or something like that, it has hdmi and VGA, but there is no hdmi in the monitor, unless you buy a VGA-Hdmi cable, maybe you can do it.
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  • #7 16204207
    sanfran
    Network and Internet specialist  
    A universal docking station is produced for it.
  • #8 16204210
    Kolobos
    IT specialist  
    There are such adapters, but the quality is different. The better ones cost quite a lot.

    Provide monitor models.
  • #9 16204212
    eryk.tomaszewski
    Level 8  
    I know. But I want it cheap
  • #10 16204264
    Kolobos
    IT specialist  
    The model is E6420, not e6240 as you said?
  • #11 16204639
    eryk.tomaszewski
    Level 8  
    It may well be.
  • #13 16205839
    sanfran
    Network and Internet specialist  
    Do not forget that without a 90W power supply, this station is useless.
    The standard DELL power supply is 65W and the above docking station will refuse to work with it. And without power, the ports in the station will not be active.
  • #14 16206147
    eryk.tomaszewski
    Level 8  
    Cheap, I thought it would cost more, I would probably buy it, and then I connect monitors to DVI :-)
  • #15 16206788
    zen3x
    Level 35  
    Sure. I have two at work. one on the dvi the other on the DP.
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  • #16 16206813
    eryk.tomaszewski
    Level 8  
    Thanks :-) I will do that too
  • #17 16206842
    sanfran
    Network and Internet specialist  
    And if you connect one to DVI, the other to DP, you can still open the screen in the pen and it will be the third. Tested. Unfortunately, it does not work with two DVIs.

    Remember about the power supply as it will be a disappointment.
  • #18 16206852
    eryk.tomaszewski
    Level 8  
    That's what I'm going to have a third in the laptop thanks :-)
  • #19 16208897
    eryk.tomaszewski
    Level 8  
    I found such a station, but tell me how many watt should the power supply have, if I want to connect two monitors, 22 inches each. 90 is enough? Or bigger, because I found something on the net that the 130w power supply supports monitors up to 15.4 inches, and larger ones need 210 watts. how is it in practice?
  • #20 16209103
    sanfran
    Network and Internet specialist  
    And since when are monitors powered from the docking station?
    There is only a given signal, you need to power the monitors separately.
  • #21 16209254
    eryk.tomaszewski
    Level 8  
    I know that separately, but someone wrote that. but I already know. Thanks
  • #22 16231834
    eryk.tomaszewski
    Level 8  
    what's better?
    displayport adapter -> vga

    is the displayport -> vga cable?
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Topic summary

To connect dual monitors to a laptop, users need to ensure their laptop has the appropriate ports, such as HDMI and VGA. If the laptop lacks sufficient ports, a universal USB docking station is recommended. The Dell Latitude E6420, for example, can utilize both HDMI and VGA outputs, but users may need a VGA to HDMI cable for compatibility with monitors. It's important to note that the docking station requires a 90W power supply to function properly, as lower wattage supplies may not activate all ports. Users can connect one monitor via DVI and another via DisplayPort, allowing for independent screen usage. Monitors must be powered separately, as docking stations only transmit signal, not power.
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