No Video Signal After Sleep or Standby

Hi guys. I have a mystery that I'm hoping you have an decent answer to. Sounds like a common problem but mine has a few twists from the issues I've read about.
Whenever my monitor is turned off or goes on standby, the computer stops sending out the video signal. The monitor will not come back on unless I unplug the monitor from the back of the computer for a few minutes or I restart my computer. Sometimes one solution works while the other doesn't and it isnt consistant.
The monitor was tested on another computer and it works well. I bought a graphics card but no difference. I even tried my HDTV plasma (which became an option because of the new graphics card) but that does the same thing.
The computer is an HP Pavilion a6219h running Vista 32 bit home premium with Service Pack 2.
The problem was with the video output that's integrated into the motherboard.
The monitor is a ViewSonic VX2235WM-5 Model VS11349.
Message was "No Signal" on the screen.
I disabled all the sleep features, Set everything to never and saved. Problem still occurs.
I bought and installed an nvidia GEFORCE GT 630 graphics card. Switched from PCI to PCIe in BIOS. Still the same problem.
With this new graphics card, I hooked up the computer to my plasma hdtv via an hdmi hook up. Same problem. No matter what I do, the screen works until it is either turned off or goes on standby.
It still keeps doing it.
At this point I think it must be the motherboard. I've also read online it could be the power supply? What do you think? Is there anything else I can try?
This question was solved.
View Solution.

Hi,
You can download a free application like CPU-Z or Speccy to find your RAM frequency and many other internal features of your computer.
CPU-Z: http://www.cpuid.com/softwares/cpu-z.html
as you said you also installed 2 new RAM's along with Graphic Card,
also check your graphic card drivers... may be they are not set to display when wake up!
Try to download updated software for your graphic card..
Hope this helps
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Quote from: Bas on 29-March-08, 19:15:31
Put the old card back in, does it work again?
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Greetings!
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I have two menus and three movies.
WHAT I'VE TRIED:
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WD 500GB Caviar Black for file storage,
Plextor DVD-RW,
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Older Microsoft Desktop 6000 V2 keyboard/mouse.
With standard Windows 7 power saving features enabled, the following
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On some occasions when turning the PC on, there is no video signal. The system boots properly (although the BIOS screen takes about 15 seconds to appear - something MSI says is OK), and can be shut down with the correct keyboard sequence. The monitor
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When the computer boots properly, usually while it is still loading Outlook (which is set to start automatically), the screen goes completely blank for 5 or more seconds, then comes back on and the monitor menu indicates that it is running at the correct
resolution, and then the video works correctly from there on in - unless it goes to sleep.
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All Windows 7 updates,
All motherboard BIOS updates,
All video card drivers and software updates from ATI,
Replaced the DVI-D cable,
Uninstalled the video card and drivers, and moved the card to a different PCI-E slot,
Replaced the video card with another Sapphire ATI HD5450 card (temporarily).
Sapphire thinks it's a hardware problem with the original card, but since temporarily replacing it with another card, the problems continue, so I doubt that is the issue. (Plus I have to pay $25 to ship the apparently defective - under warranty card - back
to them.)
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other times it is in sleep mode for hours and it happens (or doesn't).
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Hi again,
OK, I finally got around to trying this. I still have to check if that actually fixed it, but I managed to get into the "Factory" OSD screen.
I had my system running, disconnected my new monitor and plugged in the flaky old Viewsonic. I then:
1. Depressed and held down the #2 button, then depressed and held down the Power button,
2. Almost immediately the amber power light turned-on, the backlight turned on and the output image from the PC showed up.
3. The On Screen Display (OSD) for all the monitor setting came up (at the bottom of the screen instead of the middle where it normally is), and underneath the Main Menu window in the OSD, along the bottom of the overall OSD window, the word "Factory" appears
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(which is the default selection).
5. I pressed #2 again to accept and it was done.
All that is left is to do is some user testing to see if the monitor behaves as new.
Additional informtion: in the top of the "Factory" menu it reads: "LOVP AU Ver.0.36"
I took photos of everything and will post them on my Flickr account. To find them go to wwww.flickr.com, click on the search button, then on the next screen click on the People tab, enter my name and click search.
Thanks again for the advice.
Tom

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