Black screen after waking from sleep, but mouse pointer visible

I'm not sure if this is the same as the many other posts on problems connecting the Mac Mini to an external monitor. In my case, after it wakes, there is no login menu - but the mouse pointer is visible and I can move it around the screen no problem.
At present, I have to power the Mac Mini down and back up again, which is unacceptable.
What's causing this and how can I fix it?

Yes, I have this problem too. I reported to Apple about 3 or 4 weeks ago. They said no one else ever reported it and said they would escalate it but they have never got back too me. It is a pain because my mini is a media center pc and hard to get to when this happens.
For now the work around I use is to unplug the mini dvi connecter and plug it back in; this fixes the issue until the next time it happens.
+My mini (2009 version) is connected using the mini-dvi connector to a Denon receiver (with a DVI->hdmi connector) which is then connected to a sony 1080p TV. This replaced an older mini (intel duo) which did not have this problem using the same setup.+
Message was edited by: rsonnens

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