Screen goes Black - Mini Display Port!

Hi!
I've just started using 'Dr. Bott Mini DisplayPort to HDMI Adapter Pro with Optical Audio' today on my 13" MacBook Pro, and it was working fine, that is until now! Every time I take the Mini Display Port out, my screen goes black! The computer is still on and running, and I can adjust the brightness, but I can't see anything! I have to put the Mini-Display Port back in for the screen to come back. Have tried restarting, and the white screen with Apple logo comes up, then just blackness!!! Until of course I put the Mini Display Port back in!!!
Please help! Am freaking out that I've had two faulty MacBooks in a row!!!
Message was edited by: Gwenj

Try resetting Parameter RAM and see if that fixes it.
http://docs.info.apple.com/article.html?path=Mac/10.6/en/26871.html

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Welcome to Apple Discussions
If you experience a black screen, or otherwise have an unusable picture after changing to some resolutions, try resetting the NVRAM first.
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Ever since I upgraded my PB12" to 10.5.x (now running 10.5.5, but this issue has been there since upgrading to 10.5.1), when I hook up the mini-DVI to video adapter (different adapter than for hooking up to an external display as the mini-DVI to video adapter has composite and sVideo out) to my TV, the PB screen goes black. It's set up to mirror the PB on the TV, and the PB continues to run, picture works on the TV, but I loose picture on the PB. Only way to get it back is to reboot the PB (with the mini-DVI to video adapter unplugged). So, basically, if I try and use the mini-DVI to video adapter, I loose picture on the PB. This never happened under 10.4.x — only since upgrading to 10.5.x.
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If you connect the MacBook using a Mini DisplayPort to HDMI adapter you will probably need to use external speakers or a 3.5mm stereo headphone jack to RCA sound plugs connected to a stereo sound system if your TV doesn't have separate RCA input plugs or a 3.5mm stereo input plug for audio with the HDMI plug. The Mini DisplayPort to HDMI doesn't carry audio unless you have the Mid 2010 model 7,1 and there're no audio plugs on most TVs to work with HDMI since it's expecting audio with the HDMI.
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http://www.monoprice.com/products/product.asp?c_id=104&cp_id=10428&cs_id=1042802 &p_id=5969&seq=1&format=2

I am trying to connect my mac book pro to the tv via a mini display port and a hdmi cable, the only picture that is on the tv screen is the background picture on my computer, any suggestions?

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Hi there. I also bought an iWires mini Display port to HDMI cable and have an LG LED/LCD TV. I plugged it in to my MB Pro and followed the very small writing that came in the package and got both audio and video going. You need to change the audio settings from within System Preferences on your Mac to select your TV as the audio output.
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Drag applications from your main desktop off the right side of the screen and they will appear on the TV. This is the extended desktop mode.
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TS3533 if my imac is left unused for a few mins the screen goes black and is unresponsive

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In addition check your Energy Saver Preferences and make sure that your Display Sleep and Computer Sleep timers are properly set to get the expected results.
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Welcome to Apple Support Communities
That's exactly what you need. A Mini DisplayPort to HDMI adapter and a HDMI cable. See > http://support.apple.com/kb/HT4241?viewlocale=en_US
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Captfred

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Many Thanks Alangium in uk

Hi alangium,
Welcome to the Support Communities!
Resetting your computer's PRAM should restore your Macbook Pro's screen appearance.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
This article may provide some information about your Mini DisplayPort to AVI adapter. Have you tried to connect a different VGA monitor to your Macbook to see if you get the same results?
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
http://support.apple.com/kb/HT3382
18. What is the maximum resolution available for use with the Apple Mini DisplayPort to VGA adapter?
The resolution available with the Apple Mini DisplayPort to VGA Adapter is 1920 x 1200. VGA displays that use higher refresh rates (such as 85 Hz) at resolutions of 1600 x 1200 or greater may not generate video properly until you lower the refresh rate.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573#5
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If the detect displays option is not available, hold down the Option key while you are in the Display pane.
How do I select additional resolutions on my display?
You can use the Display pane of System Preferences to specify how your display works. Not all options appear for all display models. By default the best resolution for your display will already be selected in System Preferences.
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Screen goes Black - Mini Display Port!

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