Monitor Requires Power Cycle after Restart or Power Up

Question

I have a display that does not receive a signal unless it is powered off, then on while the Windows 7 system connected to it is online.

The monitor reports that it is in Standby during this exercise. The power indicator on the monitor is flashing, (standby).

Here are two scenarios:
1) Screen is on, PC is on. Restart PC. Screen is receiving no signal. Turn screen off, turn screen on, now I have a signal.

2) Screen and PC are both off. Both powered on at the same time. The screen receives no signal. Once windows is loaded, turn screen off, turn screen on, signal.

This happens every time. It is not elusive.

The screen has DVI and Analog inputs. Regardless of which cable is used I get the exact same issue.

Switching display sources does not fix the problem. The monitor will cycle through all available sources with no results till I cycle power to the monitor. There are no settings on the monitor that indicate a sleep mode is possible.

I do not have this problem with other monitors, which leads me to believe that it is a monitor setting. However, I do not have this problem with this monitor when connected to other windows 7 systems. I've only seen this problem when the two are together.

I realize there are similar questions, but as far as I've been able to find, this one is unique.

Is there any setting I am not aware of that lets a monitor know it is being used or not? I can not see any settings to indicate this is the case.

This would not normally be a problem except that this is a panel mount monitor, and the power button is on the back of the display.

EDIT:
I have reinstalled the drivers, this does nothing. I would like to point out that I have no display even during boot. So while the system is posting, or if I hit delete after a restart and I should be viewing the BIOS, I am viewing nothing. I don't believe drivers come into play at that point.

I have also recently disabled sleep functions in the BIOS, thinking that may be the issue.

arielnmz · Answer

Here are some steps to help troubleshoot this kind of issues:

Test your monitor with another computer. If the monitor works as expected it's then a problem with your video output. Try installing the latest drivers on your computer or even update your BIOS (if applicable). If that doesn't work, your video output may be physically damaged.
If you don't have another computer at hand, test your computer with another monitor.
If the problem persists, it's most likely an issue with the input controller of your monitor. It checks for a signal, and if it doesn't receive one it'd stay there until it's powered on again. This may be due to a faulty transistor that prevents the controller to try to receive a signal again. Since monitors are devices that work with high tensions but require sensible components, they're pretty much prone to this kind of issues, specially because of manufacturing issues, like bad soldering.

Darren Marshall · Answer

My father in law had almost the same problem and it turned out to be a faulty monitor. His monitor would occasionally wake up if we re-seated the DVI cable. The fact that the same thing happened when I switched him over to display port/VGA with persisting symptoms led me to believe it was either a problem with his graphics card or monitor (likely monitor).

Are you able to test your monitor on another known good PC/laptop? This could help you rule out a faulty monitor. If you have access to another known-good monitor, you could test your PC as well to rule out faulty graphics card/motherboard.

Hope this helps.

Monitor Requires Power Cycle after Restart or Power Up

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