Question about Dell Latitude E6400 Notebook

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E6400 will not display on both screens the projector and notebook screen its one or the other. how do I get it to display on both at the same time.

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  • george_webb Jul 29, 2010

    Function F5 is refresh.

  • george_webb Jul 29, 2010

    not correct



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Press Fn (Function button) and while holding it down press F5 repeatedly. It cycles through laptop screen only, projector only and projector + laptop screen.

Posted on Jul 29, 2010

Testimonial: "great job fixed"

  • Joe Bannon Jul 29, 2010

    F5 on it's own is refresh. Holding down the Fn button on the keypad and then pressing F5 repeatedly cycles through the screen, projector or both. Note you must be connected to the projector. I've done it many times on different computers.

  • Joe Bannon Jul 29, 2010

    I've just checked on the net. Some laptops use F4 or F6 instead of F5 along with the Fn key. There should be a picture of a screen drawn on the appropriate F button.



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SOURCE: Cannot display screen in the

from the video card control pannel set up the projector to clone, so will show the same image to desktop and to projector to, if yout software from projector let you i think u will got same settings..clone display

after that will work whit out problem

Posted on Sep 22, 2011

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1 Answer

How do i hook my laptop up to my samsung flat screen tv

You can go 2 different ways either through VGA along with a good old fashioned mini audio cable or run a single HDMI cable, I recommend the HDMI for a better HD experience and a single cable that covers both audio and Video for the Dell Latitude E6400 Notebook you will need a Display port to HDMI adapter but its well worth the experience.

Dec 27, 2013 | Dell Latitude E6400 Notebook

1 Answer

When connected the projector it says frequency to be 50Hz, and Horizontal and vertical screen size as not supported ...

Hi raejeshq


You don't say which Operating System you use, so my answer will be presented in general, Windows terms. If yours is a non-Windows Operating System, consider applying the logic and principles involved here to your own Operating System and, if in doubt, please feel free to add a Comment or Clarification to this Question, including information about your Operating System.

The graphics chip in your laptop can operate within a defined range of resolutions and refresh rates. As long as the resolutions and refresh rates required by this projector lie within the range your graphics chip is capable of achieving, you should be able to adjust the settings so that this projector will function with your laptop.

With the cable connected to the notebook and the projector:

Right click on open space on your desktop > Properties (Personalize) > (Display) Settings > Advanced Settings > Monitor > untick "Hide Modes that Monitor cannot display" > select 50Hz > Apply > OK > right click on desktop > Properties (Personalize) > (Display) Settings > click and hold on the slide controller and test various resolutions until you find a satisfactory resolution for the projector > Apply > Yes > OK

I hope this helps.

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Sep 25, 2011 | Dell Latitude E6400 Notebook

1 Answer

Cannot display screen in the monitor and an external projector at the same time. I am using Latitude E6400.

from the video card control pannel set up the projector to clone, so will show the same image to desktop and to projector to, if yout software from projector let you i think u will got same settings..clone display

after that will work whit out problem

Sep 22, 2011 | Dell Latitude E6400 Notebook

1 Answer

I have dell latitude E6400, I am unable to toggle between external display(projector/monitor) and laptop display. As in laptop manual, i have tried using function keys (fn+f8).


Things to check:

1. Is your display automatically transfer to the projetor right away when you plug the VGA/HDMI cable to the computer? If not, and Fn+F8 doesn't do anything, try to press the Windows Key+P (the windows key looks like this ray_tosh_1.jpg ). This will allow you to switch between displays. (see image below).


2. If you choose one of the display mode above and it still won't clone/extend the image on your computer to the projector, try to use a different cable. If still no go, try to re-install the display driver and see if that fixes it. If same issue, there might be a problem with your VGA/HDMI/Display port and needs to be serviced.

Good luck

Sep 12, 2011 | Dell Latitude E6400 Notebook

1 Answer

What function to use to be able to connect the monitor of e6400 to be transferred to the projector.

To connect a data projector to your laptop and switch between the LCD screen and data projector, please click on this link and follow my instructions :-

Sep 14, 2010 | Dell Latitude E6400 Notebook

1 Answer

Which function Dell Latitude key do I use to allow projector output to work?

Fn+F5. Holding down Fn press F5 repeatedly to cycle between Laptop Screen, Projector and both.

Jun 20, 2010 | Dell Latitude E6400 Notebook

1 Answer

Need to see display on both laptop and projector

On most laptops pressing the Fn key plus the F5 key (in your model laptop) several times will cause the video to switch to different options
In the various laptops I've used with data projectors it is the same.
If you plug in the data projector and power it up then the laptop then the Windows image will be on the data projector (provided the laptop's screen resolution matches the data projector).
To toggle between the data projector only, the LCD screen, then LCD screen plus data projector, and or back through this sequence, just press the Fn key and the F5 key to get the displays you want .

May 20, 2009 | Toshiba Tecra M10 Notebook

1 Answer

Can't work projector with computer.

When you connect the data projector to the laptop, power up the projector then the laptop. The laptop will automatically switch the video to the projector.
If you power up the laptop first the you need to switch the video output to the external video port by press and hold the Fn key and then press one of the functions keys that has a screen symbole on it, by repeating this again you can toggle between the projector and the LCD screen, even having the both displayed at the same time.
If you still have a problem, then the screen resolution is set too high and the video won't display on the projector, reduce the screen resolution to 1024x768 to see if it works, if not you may need to reduce it further.

May 07, 2009 | Acer Aspire One PC Notebook

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