LCD troubles... - TranceAddict Forums

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-- LCD troubles...

Posted by Matt on May-22-2007 00:13:

LCD troubles...

I consider TOTA to be a fairly resourceful place, so I am wondering if maybe you can help me with this problem.

I recently purchased a Samsung 940NW 19" widescreen LCD to use with my laptop when I am working at my desk. There are little horizontal bars (very faint and only noticeable on darker backgrounds) moving rapidly up and down the screen. So, I unplug the AC power from the laptop and the flickering stops. I plug the AC power back in, it starts again.

The monitor and laptop are plugged into the same surge protector, and I have tried on multiple outlets. It appears to be a ground loop coming from somewhere... but I can't figure out where.

Does anyone have experience with eliminating ground loops in home theatre systems? Any thoughts or ideas?

Any help is appreciated.

Posted by SPANIARD on May-22-2007 00:34:

Wouldn't it help to go here?

Posted by chinamon on May-22-2007 00:51:

from another thread....

quote:
Originally posted by FunkyCrew
and this is related to EDM because...?

Posted by Matt on May-22-2007 00:52:

quote:
Originally posted by chinamon
from another thread....

from another thread:

quote:
Originally posted by chinamon
everyone else contributes to "meaningless randomness" so what wrong with this thread? more than half the tota forum is what i would consider to be random crap.

Posted by Cosmic Fur on May-22-2007 00:57:

quote:
Originally posted by Matt
from another thread:

You missed his point because you didn't read that other thread. For reference, what he said wasn't directed at you.

Sadly, I can't help you with your problem. electromagnetism is a weird thing - at my desk at work, I have a fluorescent light over a 21" CRT monitor, and everytime I turn on the light, the picture in the monitor starts shaking and loses focus.

Posted by FunkyCrew on May-22-2007 01:31:

quote:
Originally posted by chinamon
from another thread....

HA!

Posted by I_Am_Vince on May-22-2007 05:54:

refresh rate? wrong resolution? drivers you might have to install?

Posted by Oreo_The_Cookie on May-22-2007 06:21:

Do you have a TV plugged in anywhere in the area? If so it might be the reason for the the ground loop and all you need is a ground isolator to fix the problem. If it's an issue with your speakers though, that's more complicated to fix by using a ground lift. It could also be coming from a fluorescent light, only way to know is to isolate it. I've never heard of a laptop causing a ground loop though, if it is it again could be solved using a ground lift. Play around with it and do some reading on eliminating ground loops and you'll figure it out.

Posted by rabbitjoker on May-22-2007 14:43:

LSD trouble you say, hmmmm?

Posted by Orko on May-22-2007 16:02:

The problem persists when you try connecting the laptop and monitor to two different outlets?

Posted by Matt on May-23-2007 03:11:

quote:
Originally posted by Orko
The problem persists when you try connecting the laptop and monitor to two different outlets?

yessir

Posted by kotsy on May-23-2007 11:39:

quote:
Originally posted by rabbitjoker
LSD trouble you say, hmmmm?

I've looked at this thread at least 5 times and it's registered in my head as "LSD troubles".