I have an e173Fp Dell Monitor with a Dimension 2400 Desktop. Same problem screen goes black, and power button flashes intermittently. There is a monitor Test. Turn off PC and Monitor. Remove the blue cable from the back of the PC and then turn on the monitor only. A blue green yellow red and white test pattern then floats over the screen. If this doesn't happen it is definitely a problem with the monitor. My problem is slightly different the test pattern floated over the screen for a while then the screen went blank and the power button again started flashing. So I assume my problem is definitely the monitor. My fix; I gave the side of the monitor near the power button a slight bang with the palm of my hand and the monitor then worked again. Then it goes off again same problem, sometimes when I bang it the monitor works for an hour or so. It is nearly five years old, has worked perfectly up to date, so I guess it is time to buy a new one, but if anyone can figure out what the problem is I would be grateful for advice.
I'm having the same problem. Details @ en.community.dell.com/.../19459964.aspx
As bigkevin says, there's a test, which I did, but the monitor won't stay on but for the 1 second at a time-- but I can see that the test block is there, floating. So it's the monitor. Now what?