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my monitor keeps flickering?



serpentsickness
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Submitted by serpentsickness on July 3, 2008 - 1:04am.

on the bottom right side my monitor keeps flickering and that is the only place it is happening. it's getting kind of annoying and i've tried everything to get it to stop but the only thing that makes it stop is changing the monitor to 60 hertz but after awhile a line starts to go down the screen. a year ago i tried switching monitors and the same thing happened so i just decided to keep using my phillips. could this be my video card going bad or what? some help here.

 

it started doing this when my power supply fan went out ( i got it fixed) and it never stopped. and this was over a year ago. 

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Stevie
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Re: my monitor keeps flickering?
July 3, 2008 - 5:40am

It's a CRT and not a LCD right?  If so, here some things to check that come to mind:

  1. Make sure it isn't caused by magnetic interference by moving your monitor away from magnetic sources - any speakers, electric lights, the PC unit itself, anything electronic.  Degauss the tube by using the monitor's built-in degauss feature - it will be somewhere in the on-board menu.
  2. Might be the monitor-computer 15-pin connection cable.  Borrow one from a friend to eliminate that possibility.
  3. Plug your monitor into a friend's PC or laptop.  If it works fine, it's something in your system.
  4. Update your monitor's drivers by going to the mfg's website and installing the most recent versions for your model.  If your problem is caused by a corrupt driver, this will fix it.
  5. Update your video adapter's drivers the same way.  You'll need to know your video card's manufacturer and model number.  This will tell you if you don't know.
  6. No joy?  Last, plug a friend's monitor that you know to be good into your PC.  If that different monitor works, then the problem is in your original monitor.

Check these things one at a time and it a particular fix doesn't work, put it back like it was before you move to the next thing to try.

If you come to the conclusion that it is your monitor, there's nothing you can do at home to fix it.  Personally I would replace a broken CRT monitor rather than have it repaired.  Check the prices of 19" LCD flatscreens at Buy.com, eCost, Newegg or similar.  Some sales have them below $150.



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angemala1 but u...
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Re: my monitor keeps flickering?
July 3, 2008 - 1:57pm

 Mine did that! It was an HP, just a basic flat screen. It started flickering, and then it eventually would go completely black for a few seconds before it flickered back on. Needless to say, after a few months, it went black and that was that. I had to get a new monitor.

I'm probably wrong, but I didn't know video cards could be related to this....??

 

I hope you can get yours fixed! Good luck! 

 

 

 

 

If seeing is believing, we're all blind as bats

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Stevie
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Re: my monitor keeps flickering?
July 4, 2008 - 8:26am

The video card wouldn't be my first place to look.

Electron beams are easily bent or affected by magnetic fields - the resulting distortions and problems usually happen in the corners.  In some monitors, even a power cord close to the back could cause enough electromagnetic inteference.  An unshielded subwoofer can do it.  A fan motor.

After you eliminate any and all sources of magnetic interference, something like this is usually the monitor.  I've seen problems caused by the cable connection or a bad cable.

Serpent had this same problem on a different monitor plugged into this same PC, so it's pointing to his system.  After he makes sure he's not using a damaged cable and hardware drivers (by updating), my next suspect would be the video card.  But before replacing the video card, I would blow out it's VGA cable connector jack with compressed air.



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