I have hired a projector for a talk I'm giving, have connected the laptop to the projector and I get the desktop background displayed or the screensaver, but nothing else. Pictures as a slide show do nothing.
I discovered that my laptop supports two monitors and the projector was acting as monitor #2. By changing the priority of the monitors I have got the information I need on the screen, but now not on the laptop. However, I can work the two from the screen and that will suffice for the moment, until I can find a way of getting the information on both!
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Try looking at your screen resolution settings on your laptop. For Windows right click on the desktop screen then click screen resolution, or display settings and see if the projector is recognized on your laptop. If yes try changing the resolution as the laptop may be trying to connect at a resolution that isn't supported by the projector.
I would start by cycling this through the f4 option again first. Next I would connect the projector to the computer and then booting up the computer. Next I would disconnect the projector...turn it off, connect the projector again and then power up the projector. Try every combination of sequencing to get the computer and projector to talk to each other. It would not be a bad idea to change out the cable and try a new one as well. If it is a ceiling mounted projector then connect straight to the projector and try that.
Which connection type are you trying to use (VGA, HDMI, etc). It would help to know what kind of computer you are using and whether you are using the projector as the only display or trying to do multiple displays.</br> If using a laptop then check and see if you have a key to switch displays. It will usually be one of the function keys (F4, F5, etc) and will most likely be a secondary action of the key requiring you to hold down your FN key then push the function key. This will switch between your laptop's outputs.</br> If using a desktop you need to go to your display properties. Win7 right click the desktop and go to Screen Resolution. You need to make sure that the Multiple Displays setting is set to Duplicate These Displays or Extend These Displays to make sure that the display adapter is sending a signal to the projector.
1st of all you need to connect the projector with your laptop turned off. One the laptop has finished booting and loading windows. Hit the Fn+f4 or f7 key to switch between the displays then you will get the display.
But if this also does not give display then you can check with the projector with Video INPUTS (Eg. Input 1 / Input 2 etc.,)
For Windows 7 and Vista- Close or minimise all windows, right click on the desktop and select "Screen Resolution". Press the "Detect" button and if another display comes up, on the dropdown menu labelled "Multiple displays" select either: "Duplicate these Displays" to show the same image on both screens
"Extend these displays" to have 2 separate displays (the position of the second display can be changed by dragging the box labelled "2"
For Windows XP - Close or minimise all windows, right click on the desktop and select "Properties" and then the "settings" tab. Click on the greyed out box labelled "2" and Tick the box labelled "Extend my desktop onto this display". click apply.
The Fn+F8 in some laptops or Fn+ KEYS WHICH HAS MONITOR ICON OVER FUNCTION KEY) command tyically runs through 3 modes: Extend desktop, Laptop only, Projector only.
Mirroring displays (meaning you see the exact same thing on both screens) is not always on option on a PC; the ability to do that is dependent on the graphics card and drivers in the laptop.
Not seeing the exact same thing on both screens is often the preferred way, but when you don't see all your desktop icons it can be a bit confusing.
The trick here is that when you want something to show on the projector, you grab the window you're working with and drag it over to the other monitor. Why this is preferred is because you can be showing a powerpoint presentation on the projector, while you have a script or notes open in Word on your laptop display to read from. You see, you don't see anything but the desktop background on the projector because you haven't moved anything over there yet.
Your laptop is in extended mode, try changing to Laptop mode, should solve your problem or try dragging the required file to that monitor as said above
Please leave me comment, if you need further assistance
Ok what's happening is that you have it set up as an extension of your desktop, you need to mirror the displays. when your projector is plugged in and it is showing only the desktop background, open "System Preferences," click "Displays," click "Positioning" and check the box that says "Mirror Displays." This should do the trick.