Trying to connect my projector to my computer - no picture.
Projector is HD7900DW (1920x1080). I have set the display monitor to match this resolution. The monitor is a Dell U2713HM (DVI). One monitor only.
I have 2 GTX 560s in SLI. The monitor is attached to the GPU via DVI. The projector is attached to the GPU via HDMI (mini HDMI to HDMI connection from GPU). The HDMI is monoprice high performance with RedMere.
I used both NVIDIA and Win 7 control panels to set multiple displays in both extended and cloned modes.
I have connected the HDMI cable to both graphics cards. The results are the same - projector is detected but can not get a picture.
The projector has a 'no signal' message and goes into sleep mode after a few minutes.
I have done a bit of reading and can not see any reason why this isn't working. Not sure where to go from here so turning to the community for help. Please let me know if this isn't the best place to post this question.
Appreciate any help.
Okay so this is what I tried and where I am now.
1. Tested projector with DVI - worked.
2. Tested projector (and mini HDMI adapter) with a different (shorter) HDMI cable - worked. So now I'm thinking it must be the extra long monoprice HDMI cable but
3. Tested projector and HDMI cable with another computer - worked!
So now I'm thinking it can only be either the mini HDMI cable or the GPU doesn't like the monprice cable but then this happens.
4. Try the original set-up one last time and it works! WTF.
So now I am left with having absolutely no idea why it didn't work in the first place and if it will continue to work in the future. But for now, let's call the problem solved.
Thanks for troubleshooting with me.
Before the new graphics card I ordered turned up things started working. I did nothing differently it just worked. I put it down to the tendency of HDMI cables to be temperamental. Since then, I've put the new graphics card in and everything has been working flawlessly.
Thanks to those who provided advice.
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