Question about Samsung SyncMaster 204B 20.1" LCD Monitor

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Flickering, sparkeling, ghosting, you name it. Related to electricity in house?

I had no problems with this monitor for over a year. I recently moved and within a few weeks the image suddenly developed purplish vertical lines (not all the way from top to bottom though), dimmed colors, extreme ghosting, and a loss of sharpness. I sent the monitor back to samsung and they sent me a new one. Within hours of starting to use the second one it started flickering on and off from time to time. It also had some pixels that turned differnt colors which made it look like the screen was sparkeling. It would do these two things on and off, and sometimes worked fine. I decided to unplug it though out of fear that something permanent might happen to it like the first one. My best guess is that the problem has something to do with the electricity in the house. It is old and the electrical outlets have not been updated. They don't even have grounds. Please let me know what the problems could be realted to. Thanks!

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Re: flickering, sparkeling, ghosting, you name it....

No, it is not the electricity in your house, I had the same problem. Send it back to Samsung and get a new one. I have had to send my monitor back 4 times!

Posted on Feb 24, 2008

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Get this flsh out of my monitor.

Hi there.

If the screen flickers, make sure the display settings in Windows match the native resolution and refresh rate for the monitor. You can find the native resolution of a flat panel display in the specifications, in the printed material or on the box that came with the monitor. Some common native resolutions are 800 x 600, 1024 x 768, 1920 x 1080, and 1680 x 1050.

The most common refresh rate for LCD monitors is 60 Hz. This normally cannot be changed for flat panel displays using Plug and Play settings. However, if you are using special video software to increase or decrease the refresh rate, change the refresh rate to match the default refresh rate specification of the monitor.

To change the screen resolution and refresh rate settings in Windows, do the following:
- In Windows XP
See my tip on setting up the optimum screen resolution for Windows XP here.

- In Windows Vista (Same for Windows 7)
1. Click Start, and then click Control Panel .
2. Find the Appearance and Personalization area, and click Adjust Screen Resolution .
3. Move the slider bar until the screen resolution matches the native resolution.
4. Click Advanced settings, and then click the Monitor tab.
5. Select the Screen refresh rate that matches the default rate for your monitor (if it is not already selected).
6. Click OK, and then click OK again.

If you cannot select the native resolution or the native resolution is unavailable, continue to the next step to update the drivers for the graphics adapter on the computer.

You can get the latest updated video drivers from the video hardware manufacturer's Web site. Here is a list showing some of the video hardware websites:

Check for NVIDIA video driver updates at NVIDIA Home Page.
Check for ATI/AMD video driver updates at ATI/AMD Home Page.
Check for Intel video support and downloads, Intel Downloads. (If you have an Intel mainboard and are using onboard graphics).

NOTE: If you are using onboard graphics with a mainboard that is not manufactured by Intel, just give me the name and model number of your mainboard and I can try and locate the graphics drivers for you.

After updating the video drivers, go back to Step 1 and try to change the screen resolution again.
Note: If you cannot select the native resolution after updating the video drivers, the graphics adapter in the computer might not support that resolution and may need to be upgraded.

If after changing the resolution and updating video drivers the flickering persists then check the video cable connections. Unplug the cable and inspect the cable for damage. If the cable is damaged, replace it with a new cable. Try to use cables less than 3 meters (10 feet) long.

Monitors are sensitive to magnetic fields so have a look at the environment around the monitor. Speakers, florescent lights, fans, cell phones, radios, and any other electrical device can cause flickering. Temporarily move electrical items away from the monitor to see if they is producing a field that causes the flicker.

If the monitor has more than one type of connection available such as VGA, DVI, or HDMI, try a different type of connection.

To see if the video coming from the computer is causing the problem, temporarily connect the monitor to another computer. If the flicker is gone when the monitor is connected to another computer, then this means that the graphics adapter hardware on the first computer is damaged or might need to be upgraded to use the monitor. On the bright side at least it's not your monitor.

If however the flicker remains then the problem lies within the hardware of the monitor itself and is not a software problem. If you have bought this monitor fairly recently then I suggest you take it back to the place of purchase and have them test it. Some monitors carry 3 year warranty support so if you bought it within the warranty period specified by the reseller I suggest you see if you can get refunded or have them swop it out.


Oct 30, 2011 | Philips 190B6CB/27 19" LCD

1 Answer

Monitor Flicker

Hello, my name is Chris. This is a really simple fix. Please make sure that your VGA card (video card) is pushed in on the motherboard. Even if it's a PCI Video Card. Still check. And make sure it is screwed in as well. If it's none of the above, than your motherboard is fried.

Mar 04, 2009 | E-Machines E17T 17" Flat Panel LCD Monitor

1 Answer

Screen flickers for about 20-30 seconds sporadically

Try looking at the LCD screen at a sharp angle to see if ghost-like video can be seen during the 'off' time of the flicker.  If video is still present even though not that visible, then either the backlight or its power supply are failing. The color problem could also be caused by a backlight lamp that is not ionizing completely.

Dec 14, 2008 | Acer AL1912B 19" LCD Monitor

1 Answer

Ghosting, Flickering, Green Sparkeling Lines, Color Washout.

I had a similar problem on a different monitor and fixed the green sparkles by selecting a lower refresh rate.

Aug 15, 2008 | Samsung SyncMaster 204B 20.1" LCD Monitor

1 Answer

I have noticed recently that the screen words flicker.

If the monitor is less than a year only, then your best bet is contact the manufacturer for warranty support.

Jun 14, 2008 | Acer AL2017 20" LCD Monitor

1 Answer

Blueish flickering

Try to put speaker distance from monitor.
Try to remove the display card and fixed it again.
Then boot up your and see .

Apr 21, 2008 | Acer AL1913 19" LCD Monitor

1 Answer

Ocassional flickering

Not sure what the problem is, but am experiencing the same symptoms every few minutes on a Mitsu Diamond Pro 91TXM, just retrieved from storage after 7 years. How's your screen holding up since April?

Apr 17, 2007 | Mitsubishi Diamond Pro 900U 19" CRT...

1 Answer

Monitor flickers and image is reduced and squeezed

Heat related dry solder issue Horizontal output side.

Apr 02, 2007 | HP Compaq FS7600 17" CRT Monitor

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