Question about HP Digital Projector sb21 Multimedia Projector

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Can't use my hp sb21 with my Macbook

I'm trying to use my HP sb21 with a recently purchased Macbook (Intel Core Duo 2.4Ghz, 4GB RAM).  The Macbook is able to identify the projector, but the projection is fixed in the "waiting for signal" screen.  I'm sure that nothing is wrong with the projector as it works well with my Dell XPS 1210.

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  • Anonymous Jul 18, 2008

    I have the same problem. I connected my 2.6 Ghz macbook pro to an HP sb21 projector and the projector is fixed on the waiting for signal screen...although the projector is detected by the computer.

  • Anonymous Apr 10, 2009

    same problem, the computer recognizes the projector, but the projector does not recognize the computer. (I have a MacBook Pro with OSX)

  • Anonymous Mar 24, 2014

    turns off after 15-20 minutes. Once off, it can be restarted, but then will do the same thing again. I have already blown it out with air, also have switched the bulb to see if that had anything to do with it (no). Used a brand-new bulb to test-- it did the same thing. The machine has been well-cared for and still has about 60% left on the bulb life.

  • Anonymous Mar 29, 2014

    My projector HP SB21 does not respond at all. I thought it was the lamp so I bought a new one (cost me almost the same as the projector itself). Nothing turns on, not even a small indication light. Im Sure it was not the lamp. I tested other cable too and nothing still. What are the other most common parts that burn?

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It works if you do it in bootcamp. but have to select external monitor instead of digital display under the intel graphics control panel. does anyone know of such an option under OSX?

Posted on Dec 14, 2008

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The problem with MacBooks and MacBook Pros with regard to running this projector is the fact that the normal cable had both USB and video running through it. It worked fine with iBooks, but with the MacBook series it no longer does.

One solution with the plain vanilla MacBook is to use a mini DVI to S-video dongle with an S-video cable. Resolution is limited to the S-video (lousy), but it works.

The other potential solution is a combination of cables. Mini DVI to M1 female adaptor combined with a M1 Male to DVI-D Male cable. The cable is available from Cables to Go and by itself provides the proper connections for a MacBook Pro and SB21 projector.

Posted on Oct 26, 2008

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Posted on Jan 02, 2017

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