Question about Relisys RHTP200 DLP Projector

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Relisys projector will not show presentation from laptop

I have tried the F5 key and also have switched display to presentation the projector doesn't recognise the signal it seems as the laptop does change to the other monitor output. I have used the computer/s-video/video/dvi/ycpbr settings. The cable I am using is a hdmi one into the projector with red green and blue plugs and it is plugged into the monitor port on my laptop..

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The signal resolution may not match on the projector.

Posted on Aug 19, 2009

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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

2 Answers

Cannot find the source


Hi,

Try lowering your laptop's screen resolution and refresh rates to the lowest possible.

Additionally, you need to press Fn + F? keys on the laptop to cycle on laptop display, laptop display + external; display, external display.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

May 15, 2008 | Optoma HD70 DLP Projector

1 Answer

I have my computer on and connected to the projector viewsonic pj550. I then turn on the projector but it does not read the computer.


Assuming that you have all the connections between your computer and the projector already performed, you should check in you computer's manual what is the key combination necessary to switch between normal mode and presentation mode.

For instance, some Dell laptops and computers need you to press the function key (key marked with Fn in blue) and, while keeping it pressed, press also the F8 key (marked with CRT/LCD in blue) to cycle between the options.

Some HP laptops and computers will need you to do the same operation, but now using the function key and the F4 key, to select between "Computer only", "Extended (dual) presentation mode" or "Projector only" modes.

Some computers have an icon in the tray area at the bottom right part of your screen for the display characteristics. Clicking on it shows a menu where you can select the graphical options for your computer, and there must be an option for the selection of a dual display mode through which you can select computer + monitor (projector)

This same function can be called from the Control Panel in your computer. Assuming that you are using Windows XP, you will need to go to Start > Settings > Control Panel > (Graphics Adapter Configuration Setup), where (Graphics Adapter Configuration Setup) will depend on the graphics adapter chipset used in your computer (Intel, nVidia, ATI, VIA, etc). There, you might have the same options to select a dual presentation mode, to show the things in your computer display and/or your projector.

If even with these indications you are still not able to make your computer show its information through the projector, please send us more details on how you connected your computer to the projector, as well as the brand and model of your computer and the operating system you are using.

Hope this information can be helpful!

Mar 09, 2011 | ViewSonic PJ550 Multimedia Projector

1 Answer

First time using infocus 1x projector with this laptop - installed drivers but there is no start up screen on the projector and will not display laptop image.


You have to tell the computer you hooked up an additional external monitor. Lower left on the keyboard you will see a "FN" key. Across the top, your F keys...look for an icon that looks like a monitor. Usually F5, F7 or F8. Hold down the FN key and select the F5 etc key which is the command to display the image through the external port. Doing this once displays image through the projector and laptop. Twice displays image to projector only and three times returns to display only on laptop again.

Jun 19, 2010 | InFocus LP640 Projector Multimedia...

2 Answers

The projector doesn't work with my laptop


Have you opted to switch display to the printer using the function key with either F4 or F5, you will see the laptop symbol with a square next to it.

I think option 2 showing two screens with no 1 in them works best with Toshiba.

If you try this and fail, you can look at the From your desktop, Proerties, Settings, Display - Option Plug and Play!

Let me know how you get on with the above.

May 22, 2009 | Dell 1201MP Projector

1 Answer

Presentation mode is off in laptop


use the remote control or the menu button on the projector - navigate the menu system of the projector and one of the options should be able to alter the presentation mode from off to on.

If you post back with the model of the projector can either post a link back with a pdf manual for it or if you read the manual it should show in there how to enable the presentation mode.

Also ensure that you have the projector and laptop connected via the relevant cable ie vga or dvi before you switch the laptop on.

Also ensure if its got an intel graphics card to use the intel or graphics card utility to enable dual display or clone display mode and that the projector is switched on before you turn your laptop on.

right click in free area on your desktop --> properties --> display --> and configure it under the advanced section with regards to getting your laptop to display on the projector

configuring your graphics card for the projector will vary from graphics card to graphics card as the drivers are different between manufacturers and they place things in different places.

If you also post back with what make and model of graphics card you have on your laptop I can try and assist you further with how to ensure your laptop is outputting to the projector.

Also if it displays funny then lower the resolution on your laptop as well as the display frequency / refresh rate as the output from the graphics card on your laptop has to match what the projector supports ( this will be in the manual of the projector in terms of what display modes it supports )

Apr 10, 2009 | Panasonic PT LC75U Multimedia Projector

1 Answer

Connecting cinego projector to hp laptop


don't know much about the cinego ( resolution ect)

but on most laptops you will have a "F" button or function key near the top row.. mine is F5 that has 2 square icons to show 2 monitors, 1 black, 1 white, when your projector is hooked to your laptop, hold down the FN key probably lower left or right, and tap the F5 or f7 which ever has the 2 montiors on it, it should be a 3 position switch, 1..laptop only, 2 laptop and projector, 3rd position projector only.

that cingo is pretty low-end so you may have to goto display properties on your laptop and reduce the resolution to 800 x 600 or 1024 x 768.

if you can't get a setting that works, try the 3rd position with just the projector display on, and laptop display off, since your laptop screen is higher resolution it corrects a lot of issues.

Jul 14, 2008 | Radio Shack Cinego D-1000 Multimedia...

2 Answers

Toshiba laptop won't work with new optoma projector


-toggle the laptop display using the FN keys and F5 I believe. -lower laptop resolution to 800 x 600 -look in laptop display properties for lcd or external display settings, see if it (external crt) has to be enabled on the laptop first.

Aug 26, 2007 | Optoma Projector Multimedia Projector

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