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No signal to monitor

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Hey guys, I seem to be having a problem here. My PC was running fine until my circuit breaker kicked from something else in the house being turned on. This isn't the first time this has happened, so I didn't think anything of it. About an hour later, I went to turn the PC on and I'm getting a "No Signal" from the monitor.

Right now I have the monitor plugged into a Nvidia GeForce 9400GT GPU. I unplugged the monitor from that and plugged it into the motherboard's onboard video. The monitor came on for a second and then went right to No Signal again.

I've tried restarting the PC, unplugging the monitor, everything I can think of.

Any idea what the problem could be? Everything else seems to be running fine. The CPU heatsink is running, all the fans are running, no beeping, just no display.

EDIT: Plugged in a second monitor and I'm getting no signal on that one as well, with both the GPU and the onboard video.

2ND EDIT: I guess I figured it out. Turns out the PC was in hibernation when the power went out. I plugged the monitor into the onboard video, took out the GeForce GPU and restarted the PC. When it came back up, I had a picture but it was in Windows Boot Manager, which was telling me that the PC couldn't come out of hibernation. When I got back to the Windows screen, I put the video card back in and plugged the monitor back into that. At first, I got "No Signal" again, but when I jiggled the connector on the monitor it got a signal and seems to be working now.

As for turning hibernation off in Windows 7, I went into a command prompt and typed "powercfg /hibernate off". I didn't get any confirmation, though, so does that command work?


Edited by EricJB, 10 August 2009 - 06:19 PM.

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