I'm no expert....BUT...I had the same problem. I was told to use the FN (function key) and F5 to swith the display to include the projector. Seems that in bootup, the 'setting' for CRT and/or secor\ndary screen (projector) is not active, but as soon as windows is loaded, the setting kicks in, and may leave your projector screen with no signal. SO try toggling with FN+ F[whatever key your pc uses].
It definitively sounds like either a Screen resolution or a Screen Refresh rate problem. I would suggest you start at the bottom: set your Screen Resolution to something very low like 800x600 and set the Refresh rate to 60Hz - both in Windows of course - you'll probably have to do this with you regular display attached to you PC first, then connect your BenQ second. Than move your way up to the recommended spec in your BenQ User manual.
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I had the same problem. The projector works wonderfully connected to my iPhone (with an adapter), and connected to other kinds of laptops, but not with mine. Apparently the projector is not compatible with every laptop. I had to connect my projector to my laptop via a Netgear PTV1000 streaming player in order to use it.
You connect to the player wirelessly. Then use the HDMI cable to connect the player to the projector. Streaming Players
I happened to already have the player so I didn't have to purchase a new device. I hope this helps you.
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.,)
In most cases this problem is cured by enabling the external VGA (or monitor) ouput on the laptop. The quickest way is to reboot the laptop with the projector turned on and connected. Usually the laptop will detect an external display is attached and enable the port.
It is also possible to manually enable the external display port. It varies from laptop to laptop but look for the "Fn" key at the bottom left of the keyboard, usually coloured green or blue. You should see a row of icons on the top row of "F" keys which is in the same colour. Look for the one which is either a monitor, or possibly says LCD or CRT.
Hold down the Fn key and press the key you located in the last step. There is usually a delay of a few seconds and then you'll find something may happen. Usually the external output will be turned on alongside the local (laptop) display. Repeatedly following the last step cycles through all available configuration options, including both on, local on, local off, external on, and external off.
This should fix it. Make sure that the correct input is selected on the projector whilst doing this. It will be labelled on the projector and it should display the same input message on screen.
Is the projector directly connected to the computer? The setting on the projector might be set to auto detect source, could be one reason why when you boot your computer up its detecting for a source where it is attach to. You can set that to manual and by the way change the cable since it seems that the device is unable to detect any source.
You need to change your graphics card settings from extended desktop to cloned desktop. You will find that if you use your mouse currently to drag a window or icon across to the projected screen, it will move the window there. This is the extended desktop. I assume that what you want is to have the exact same screen on your laptop and your projector - this is called the clone screen. These setting can be by right clicking your desktop, select properties. Click on the display settings tab. click on the advanced settings button, and the the graphics card tab. There should be another button to launch the graphics card settings there.
Look in online user manual for laptop and check for the shortcuts to press to enable the secondary display.The second responce would require me to know what drivers (for graphics card) are you using and the type of graphics card you have (including manufacturer).
Hi, it is possible that your notebook is set to a high resolution that your projector cannot handle. You may want to try to: 1) run your notebook as is (without connecting to the projector); 2) soon as windows booted up, right click on any clear area of your desktop and click on Properties; 3)Go to the Settings tab; 4) Set the Screen resolution to the lowest possible setting, towards left (less) and the Color quality to the lowest possible. Clilck Ok then reboot. Run once to see everything is OK except your icons are bigger now. Youo can try connecting your projector to see if it works. Hope this be of help to you. Cheers.