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When switching the projector from one computer to another the projector does not detect a signal from the 2nd computer. The projector previously worked with the 2nd computer. The projector model is MP515.

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The second computer might not have the screen correct setup. If you have windows 7, simply push the windows button + p at the same time and it will bring up an array of options to connect a projector.

Posted on Apr 10, 2011

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1 Answer

Shut down after 30 seconds


Many projectors shut down if they cannot find anything attached to them.
Make sure you have a computer attached and sending an image out to it before you hit the projector reset button again.
It's a bit like the chicken and the egg since some laptops won't send an image out the cable unless it senses a projector, and the projector shuts down if it does not detect an incoming signal fast enough.

Apr 23, 2014 | Acer PD528W Bulb

1 Answer

HELP PLEASE!!! NEC NP-V260 Computer In can not detect signal from the Computer


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.

Jun 28, 2012 | NEC V260 DLP SVGA Projector

3 Answers

My used DEL 2300 MP doesn't seem to be compatible with my Compaq PResario CQ60. It keeps searching for a signal? Any suggestions?


Decrease the screen resolution of your computer to the minimum possible value and check.
Probably the projector does not support the resolution of the laptop. With a lower resolution it might work.

Oct 30, 2011 | Dell 2300MP Multimedia Projector

1 Answer

Laptop connected to projector get initial message "no signal" then projector continually searches through video, computer 1 and computer 2 - what do I do?


Make sure that you have enabled the 2nd screen output from the laptop. It sounds like there is no signal at the input of the projector. You can check this by connecting a monitor to the 2nd output of the laptop. Often you have to press one of the function keys (F5 possibly) to enable the 2nd screen from a laptop.

Feb 01, 2011 | Hitachi Performa CP-RS55 Multimedia...

1 Answer

Projector will not detect a Dell computer


Computers do not generally send an RGB signal, you should be connected via a VGA cable between the projector and the computer. The input menu on the projector should be set to VGA. The output of the computer should be equal or lower to the maximum resolution of the projector.

Jan 29, 2010 | ViewSonic PJ551 Multimedia Projector

1 Answer

Searching for signal


The problem is with the computer, not the projector.
There are special function keys, generally with blue lettering along the top row of your keyboard. Find the one that looks like a double screen or says "CRT". Also locate the blue function key [FN], probably on the lower left on the keyboard.

Press, and hold, the [FN] key and press the [CRT] key to change to dual screen.... and wait for several seconds for the projector to detect it. If it still doesn't work after you have waited, press the key sequence again (there are 3 different screen settings).

1. Computer Screen only (normal)
2. Projector Screen only
3. Both Computer AND Projector screens

Sep 24, 2009 | Dell 2100MP Multimedia Projector

1 Answer

Dell 1209S Projector "Searching for Signal" with Laptop


Try fn + f8, then wait and see if the projector detects the port (15 seconds or so) if no change, try Fn+F8 a 2nd time

Jul 28, 2009 | Dell Latitude D800 Notebook

1 Answer

My Toshiba TLP-XD2000 projector reads "unsupported signal" when it is plugged in to my Dell Inspiron 600m laptop. It has worked for about 8 months perfectly and then when I plugged it into another computer...


reset the settings to factory default. when you plugged it into the 2nd computer, it searched for matching resolution, to no avail. when you put it back with yours, it was on the default setting.

Jun 23, 2009 | Toshiba TLP S30 Multimedia Projector

1 Answer

No signal


Hi and welcome to FixYa,

Initially, the "No Signal" error message indicates just that, it is not receiving anything or that the signal it receives is beyond its capacity. With this in mind, pls check:
  • the cable connection from PC to Projector;
  • that the PC is set to display on a 2nd monitor, TV or Projector depending on the capability of the PC's video card (Twin View or Dual View); or
  • as main monitor;
  • lower down the computer's Screen Resolution and/or Screen refresh rate.
Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Nov 26, 2008 | Dell 2300MP Multimedia Projector

1 Answer

Hp vp 6210


connect the laptop with projector and power up the projector and select the input 'computer' now start the laptop. the Projector will automatically detect the signal. secondly also chek with the display setting set to 800x600 then check with higher resolution.

Mar 28, 2008 | HP VP 6210 Multimedia Projector

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