Display Setting Problem

Question

I accidentally chose an unsupported display. If I boot the mini it starts up and then the display flashes "no support." If I start up in safe mode everything is very large. I go to system preferences and there is not a display selection.
Is there a way to rest this? I have done the control option P R start up, and it did not help.
I did the 10 second hold down where the computer bongs for a long time on start up. No luck. I'm at my wits end.
CG

Answer 1

The lack of a displays preference pane when you safe boot is something I have not come across before - indeed, when I messed up the display settings of a mini connected to a TV and ended up with a display that wouldn't sync, I was able to resolve the problem by safe booting and resetting the resolution and refresh rate in the display preferences.
One thing I have found has worked on some Macs where the display settings have been set out of range and the display therefore doesn't work is to disconnect the display completely and then boot the mini. Once it has started up and there's been sufficient time elapsed for the desktop to appear, then reconnect the display again.
What that OUGHT to do is cause the mini to set a default minimum display setting when it fails to detect a display. 640x480 or 800x600. When you reconnect the display, the desktop should then appear at that default minima.
You should re-enable automatic logins (the checkmark in the security preference pane) before you do this since the mini may not detect the absence of the display before it cycles into the user's desktop.
Even if this works, it's of some concern that under safe mode the preference pane is missing. To me, that would indicate the problem is a little deeper than merely preference settings, but this is worth a try.