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When Windows 7 power management turns off my monitor after the set time, it starts repeatedly playing the "Device Disconnected" sound. I know Windows is playing this sound because it no longer senses the connection the monitor, as it would with any other device being disconnected. The problem is the monitor is turned off purposely to conserve energy, so the sound should not play continually.

Do not want to change sound for "device disconnected" to "none" becuase it is used for other device disconnect notifications.

Search of MS Knowledge Base was not helpful. Also did not see any posts here which were specific enough to this. I have checked every setting I can find in Windows. Any suggestions how to get this to stop playing the sound when the monitor goes into energy save?

Update: In the event viewer there is a fatal error in Widows Desktop Manager during all of this. After further investigation is appears to be a known Windows issue; http://answers.microsoft.com/en-us/windows/forum/windows_7-desktop/the-desktop-window-manager-has-encountered-a-fatal/ae44c9ea-3b52-451d-a371-91ae375ce353. At this point there doesn't seem to be an answer.

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Some monitors use basic communciations on the VGA cable. When the monitor goes to sleep it sends Going to sleep over vga.. then Windows has a bug and sends wake up.. continious loop. This could also be the case in HDMI. Try to change the driver of your actual screen (not gfx card) to some other generic(or find your model maybe on the manufactures site) and see what happens. Also you could try changing VGA Sleep modes in BIOS. –  ppumkin Oct 4 '11 at 12:52
    
I take it that you have done tests to confirm that it is indeed related to the monitor going into standby right? For example, you’ve manually put the monitor to sleep and found it still makes the noise? Does the sound occur just once each time the monitor shuts down or repeatedly? –  Synetech Aug 8 '13 at 1:57
    
@Synetech Yes, it's definitely related to the monitor going into standby. There are other PCs of the same model (all installed at the same time) in our office which do the exact same thing. This appears to be a default setting of some sort. I'm starting to think its related to digital monitors, since these are all DVI. –  CharlieRB Aug 13 '13 at 12:25
    
The problem is the monitor is turned off purposely to conserve energy, so the sound should not play continually. Does the sound occur just once each time the monitor shuts down or continue in a loop after it has turned off? –  Synetech Aug 13 '13 at 15:39
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I've never had that sound play when my monitor is shut down for power management. Does yours have anything else (sound bar, USB devices) connected that could be triggering it when it gets turned off with the monitor?

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No other add-ons to the monitor; like a usb hub. Just the power and video cable connected to the computer. –  CharlieRB Sep 28 '11 at 15:06
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