I have an Power Mac G5 running 10.4.11 which I use for Adobe Pacemaker.
I also have a 2009 iMac running 10.10.3.
Is it possible to use the display on the newer iMac when using the older iMac and, if so, how do I do this?
Pacemaker should read Pagemaker.
The only way a G5 can use the iMac's display is with screen sharing software. Direct cabing coupling without additional software only became possible with the 2009 iMac and, at that time, only the 27-inch version. See this web page for infomation on screen sharing:
Use iMac display for Power Mac G5
