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No signal optoma ep739

I connected the projector to my pc, It shows the windows logo but after that shows "no signal"
resolution is 1024 -768 @60 hz

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Re: no signal optoma ep739


One good thing is that you are running XP. Will work on the premise (that you have posted) worked before and the driver (ForceWare91.31) was the only thing changed.

Let's try the easy ones first. Activate twin/dual view in your Display Properties. Right click on any clear area of your desktop, click on Properties, click on Settings tab, select monitor 1 or 2 depending which is your primary and which is your projector. Check (or uncheck-whichever works) on box "Extend....". Apply, OK.


do the same with nView Properties.

The hard ones are registry and/or inf editing, though I am reluctant to even suggest.

Incidentally, there is an application that is supposed to facilitate twin or dual view configuration, UltraMon. This may be better/safer way to address your concern.

If all else fails, you may have to rollback/downgrade your driver.


Posted on Jan 20, 2008

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Hi there

If the signal is not picking up do the following:

Right click on your desktop and go to Properties - then click on settings and check if your resolution is set right i.e. - a XGA (1024 x768 ) Resolution on PC and Laptop.Or SVGA ( 800x600)

Then click on the advanced settings tab and check if your secondary screen/monitor is attached - needs to be attached.

If this still doesn't work then hold in the Fn ( function ) button - situated on left side of your spacebar and press the button in your F-row of buttons with the 2 screens on it.

This should do the trick

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Hi there

You can get the full users manual for the Optoma EP739 on

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