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Monitor disconnects at startup and when playing certain games


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#1 AScheu

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Posted 09 June 2010 - 11:53 AM

When I start up the computer the screen goes black at windows(vista home premium) startup and states "no signal". If I put the computer into sleep mode, then wake it up, the screen works. This also tends to happen when I playing certain video games, such as Free Realms, but not other games such as Oblivion and Civ 4. I had it diagnosed at a computer store and they said that no problem was found in my hardware and that "there were signs of Windows O.S. corruption" and recommended a system restore.

I restored my computer to factory settings yet that hasn't helped. I also cleaned the inside of dust and put new thermal paste on the heatsink.

My computer is a gateway with an AMD Phenom 9600 Quad-Core processor, 4 GB DDR2 memory, and an ATI Radeon 3650 HD graphics card. The monitor is only a few weeks old and works perfectly on other computers.

Any help or suggestions would be appreciated.

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#2 hamluis

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Posted 09 June 2010 - 01:27 PM

Have you tried reseating the graphics card, if using something other than onboard graphics?

No signal indicates a problem with the video transmission from system to monitor...the trick is to see which is at fault.

Can you try a different monitor with your system temporarily...to see if the situation replicates?

I'd say that the fact that it also occurs during game-playing...points at the graphics.

Louis

#3 AScheu

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Posted 09 June 2010 - 02:25 PM

Thanks for the reply. I have tried a different monitor and I have the same problems. I also removed the graphics card and put it back in, didn't help.

Gateway suggested that the partition used in the system recovery might have been corrupted and to try a recovery cd. So I'm hoping that will help.

#4 cryptodan

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Posted 09 June 2010 - 02:27 PM

I would try replacing the vide card all together. Seems like it is possibly dying.

Do you get any pixelation while gaming? How hot does it get?




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