Second monitor via hdmi causing mdp to sleep

Hi
I have a 27" dell monitor which i have been using for a year on my mac mini (2012) via the display port
I have recently added another monitor and im using the HDMI port for that one (hdmi to dvi lead), both monitors work fine BUT then my 27" dell (in the displayport) will all of a sudden go to sleep and nothing i can do will wake it - i have to actually restart and then everything is ok again (until it happens again)
the display settings are set to "never go into sleep" in the control panel and its always the display port monitor, the hdmi monitor is always fine
has anyone had a similar issue, would a usb-hdmi or usb-dvi adapter work better or should i (in theory) be able to run a monitor from the displayport and hdmi simultaniously without the displayport monitor going to sleep
this is driving me crazy!

hi cable_guy,
Welcome to Lenovo Forums!
Im sorry to hear what happend..
The HDMI will not display right away, you will have to configure the computer to make it work.
I believe you will have to blind crawl to this options.
First is to press the (Windows key plus P) to pull up the menu of external display
Things to consider:
- You should be in the desktop screen and not in the log in page
- Windows 8 and Winodws 7 have a diff interface also your keystroke may differ.
=Winodws 7
=WIndows 8
- Resolution, If you external Screen does not support the current screen resolution and refresh rate it may not work. but this rare to happen.
- One last is that you will not know if the screen will not work and how it should be troublshot because you cannot see thing on both screen.
Regards
Solid Cruver
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Second monitor via hdmi causing mdp to sleep

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