Monitor says - "No Signal"
Out of desperation, I connected a spare 20" Apple Multi-scan CRT (also a Sony Trinitron), and everything worked… 1-2-3 and we were on the desktop. Over the next two weeks, the Apple Multi-scan never failed to work.
Thinking that I had a +monitor issue,+ I acquired a Sony 20" TFT flat-screen. Connecting it up, I got the same results… a blank screen with the terse message… "NO SIGNAL !!" Unsavory language followed. Sooooo, I acquired another video card. Inserted it and connected up the flat screen. Again… NO SIGNAL !! The G3 was on the counter four times and worked like there never had been a problem. Even when I took the G3 in with the Sony TFT flat-screen. They said to hold down the Command-Option-P & R keys on start-up. This will bring the flat-screen up, but on start-up later, itz back to business as usual. IF my video card were the problem, the flat-screen would NOT work at all; once up & running, I've made changes to all the monitor settings- to my satisfaction. I've run it for three hours. Re-setting the P-RAM has not changed the blank screen & NO SIGNAL problem.
So, for now, itz the G3, Multi-scan and me. The flat-screen sits. Appearantly, there seems to be BOTH a hardware and software problem. But I'm leaning more towards the software. However, my brainbox DOES know what monitor is connected to it, viz the DISPLAYS pane.
WHAT say you– Grand Wizards?
G3/450MHz, Mac OS X (10.3.x), 2 hard drives, I GB Memory & a 320GB external Western Digital