Question about InFocus LP640 Projector Multimedia Projector

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LP 640 projector not able to display 1080p

Hello, I hope you can help me with a problem that I have been having with an Infocus LP640 projector. I have been trying to get it to work at 1080p resolution with a Playstation3 and a HP dv 9600 laptop that has a HDMI connector. I am using a standard HDMI gold plated 3 ft cable and an M1 to HDMI adapter shown in the attached picture. Everything works fine at 1080i but as soon as I try 1080p the projector will show a signal out of range message. If I hit some of the remote?s buttons the image will appear but distorted, out of scale, and bad quality, also I am not able to make any adjustments to the projector since the menus are not available for changes in the projector?s setup display. When I bought this projector the specifications in my manual show that it is 1080p capable but if you go to the Infocus website now it shows it is only 1080i compatible. It also says that this projector is not HDCP compatible.

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  • starfox231 Mar 09, 2008


    I am having the exact same problem. I am also trying to get my projector to display in 1080P using the Playstation 3. The specs of the projector says that it is able to do 1080P on a lot of sites. I can do 1080i fine, but as soon as I try 1080P it doesnt work. I also notice that I have a white line on the right side of the display when it is in HD resolutions. Do you have the same line? And have you figured out a solution to the 1080P problem?



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The specs of the LP640 show that the maximum resolution it can handle is 720p. You are trying to make the projector do something it cannot handle

Posted on Jun 06, 2009

  • Anonymous Jun 06, 2009

    Sorry... correction 768p is maximum not 720p



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1 Answer

I have an Infocus 640 that I'm thinking of repairing. It won't power on correctly. If I hook up a regular power cord to the back and bend it slightly and press the power button, the unit will power on...

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Otherwise look at the part number of both power supplies and see if they are the same.

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In Focus LP 640 won't even turn on? Any help

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1) Blinking RED led- Lamp or fan failure. Usually this is a bulb issue and simply needs the lamp replaced and the lamp life hours reset. Below you will find an image from the owners manual that will allow you to translate the # of times the LED blinks into a problem/solutionrobertsager.png
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Mar 07, 2011 | InFocus LP640 Multimedia Projector

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Why is my image red tinted on my LP 640 Infocus projector?

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May 24, 2010 | InFocus LP640 Projector Multimedia...

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If this is the case, make sure the source in not set to a resolution higher than 720p.
However I really need more information to offer a definitive solution.

Take Care!

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LP 640 projector not able to display 1080p

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1080i is the max it can down-convert.

As far as the DIGI input, it is not DVI... It's a proprietary
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Good Luck!


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PowerPoint and Projector (InFocus LP640) Incompatability

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