Topic Title: ATI Radeon HD 4850 Graphics Card
Topic Summary: Screen showing lot of dots
Created On: 11/15/2012 11:18 AM
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 11/15/2012 11:18 AM
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Joined: 11/15/2012

I need feedback on this problem with my graphics card.  I just bought the above card and utilize both DVI-I output to two monitors; AOC Model e2243Rwk and a Sony (forgot the model) with a DVI-D and VGA input socket.  For some reason, when I boot the system and watch both screens, I see these dots all over the screen (bunch of vertical dots lined and populating the entire screen).  When the system is totally booted, I tried adjusting the screen resolution to fit the best resolution to my liking.  However, on some of the resolutions, I don't see the complete icon of the application.  It's just represented by fine dots.  I readjust the resolution and came up with the optimum view showing most of the icons legibly in the task bar.  However, there are still some icons that are not showing; i.e. ms word, etc.  Another observation is the arrow of the cursor has associated fine array of dots that is surrounding the arrow.  This is also observed in the Sony monitor.  My question is:  is this the graphics video card display or some other causes?  Is there a fix to this display?  Any input is appreciated.  I tried using the Catalyst setting but it did not fix the monitor displaying the dots.

 11/15/2012 11:44 AM
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Work with just 1 display connected physically at a time.  Can you narrow down the culprit to be:

1) a bad monitor?
2) a bad cable, or adapter?
3) a bad port on the card (and therefore a bad card in general)?

I highly suspect you have a bad video card.



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 11/16/2012 08:31 AM
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Polygon Pusher

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Joined: 01/27/2008

You just bought a 3-4 year old vidcard? Get your money back, sounds like it's been toasted/suffered from excessive heat.


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 11/16/2012 09:09 AM
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The question is, is it a used card or a new card? If it is used, you're SOL unless you bought it on Amazon or eBay and can file a claim for an item not received as described. If it is a new card, then you need to return it to where you bought it, eat the restocking fee, and buy a HD 5000 series or later card (as the HD 4000 series and below are legacy).

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