Question about Samsung SyncMaster 172N 17" LCD Monitor

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Samsung screen goes black, comes back on and graphics are scrambled

Hi everyone, i know there are a number of questions regarding monitors going black but i have not found a solution to mine.

I am running windows xp sp2 and have a 17 in Samsung syncmaster 172n as my primary monitor running to my brand new galaxy 8600gt video card via the vga port, i am running my hitachi 32inch lcd tv as a secondary monitor (eg, extend windows desktop), the tv is connected via vga but through the dvi port via an adaptor. The issue i am having is that while i am working on my pc using the small lcd the screen will go black at random times (especially when i am doing a number of things) then come back on, this is annoying enough but sometimes when it comes back on the graphics are all scrambled, sometimes if i leave it for a minute it corrects itself, others i have to disconnect the vga and plug it back in but even then i may need to do it three or four times to correct itself.

My mother board is a Gigabyte GA-81945P-G-RH and i experienced this problem on my previous gigabyte video card (hence why i bought the galaxy) but i am still having the same problem.

Any help would be greatly appreciated.

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  • anilfabian18 Jun 29, 2008

    My LCD Samsung SyncMaster 730BF screen always flickers and some times it turns off and comes back again.

  • paulkni Aug 29, 2008

    I have had the exact same problem. Not only with my 172N on winXP, but also my friend has the same setup and the same problem. The I have removed the Samsung driver and used the windows driver with the same result. The problem appears to get worse the longer the monitor is running.

  • Anonymous Oct 12, 2008

    After system is on about an hour or so monitor begins to turn black and then flash back on. It gets worse the longer I stay on the computer.

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1 Answer

Check for defective and leaking electrolitic capacitors

Posted on Oct 30, 2008

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Use an external monitor as a test.

If the screen of the external monitor shows a scrambled display you have a problem with the graphics chipset.

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http://en.wikipedia.org/wiki/VGA_connector

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Primer:
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Compare to the price of a replacement LCD screen,

http://www.laptopscreen.com/English/model/Toshiba/SATELLITE~A205-S5804/

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Chip and Chipset are slang terms for I.C.
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http://en.wikipedia.org/wiki/Integrated_Circuit

The graphics chipset is a GPU.
Graphics Processing Unit,

http://en.wikipedia.org/wiki/GPU

The GPU for a Toshiba Satellite A205-S5804 Notebook PC (Part Number PSAF3U-0NR00V), is an Intel (Mobile) GL960 Express,

http://en.wikipedia.org/wiki/List_of_Intel_chipsets#Core_2_mobile_chipsets

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In comparison if the GPU were soldered to a removable adapter card, it would be a graphics card, and Not integrated graphics }

This means if the graphics chipset is found to be bad, motherboard replacement is the solution.

{ Disassembly guide,

http://www.irisvista.com/tech/laptops/toshiba-satellite-a205/laptop-disassembly-1.htm }

For additional questions please post in a Comment.

Regards,
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