iMac as Mini Monitor--Screen Recycler/Mirroring?

[aidanpendragon]

I've searched online and in threads here on the "can I use an iMac as a monitor" question, and found mostly negative answers. One exception seems to be the 27" model connected via mini-Display Port.

However, I'd been hoping to connect an older (G4/DVI) Mini to a new (21.5") iMac, to use the iMac as a monitor.

The only semi-hack solution I've seen is to use Screen Recycler or similar software. I have two questions, though:
-Can Screen Recycler be used to mirror a desktop, not just extend it? (all info I've seen talks only about extending/2nd monitor, not mirroring).
-How's the performance? OK for gaming?

I'm guessing this would be a pretty kludgy and/or mixed solution; still, any help would be appreciated. Thanks.

 

[spinnerlys]

If Screen Recycler is able to mirror (try it, the trial runs for 20'), the display with the lowest resolution will set the resolution for the bigger one, and as the G4 most likely has not 1920 x 1080 pixel to offer, the 21.5" iMac will use the resolution of the G4 (15" or 17" or 20").

 

[Hellhammer]

Why would you hook that ancient Mini which is 1000 slower to your brand new iMac? I'm not sure can you mirror with it but at least the gaming performance would be horrible. You can try it for free