slight twitching in moniter?

[JoPh]

my moniter has this slight shaking effect going on it. the res is 1280x1024 and its on 85 refreshres rate.

just started today when i moved into my apartment. wasnt doing it at my house hold. could it be something coming through the walls or something?

i dont have any fans or anything like that to cause the shaking effect.


any ideas?


edit. changed 75 to 85

 

[wfbberzerker]

try degaussing, and messing with the moire settings on your monitor.

 

[viivo]

Anything close that could be casuing interference (Speakers, television, etc.)?

 

[ku]

Or that apartment could just have bad electrical wiring... like mine T)_T

 

[JoPh]

Originally posted by: viivo
Anything close that could be casuing interference (Speakers, television, etc.)?

nothing. i moved all the speakers away.

i did degauss several times. ----- i still get a slight shaking at 1024x768 res....



Ill try a different outlet tomorrow. ---- i didnt know that could be a problem.

thanks for the some tips.

ill look more into tomorrow. gotta sleep.

 

[VirtualLarry]

99% of the time, it's a power problem. I've noticed it happening here, in the morning especially. Look into getting a UPS with AVR, those can help "smooth out" voltage dips in the mains AC power, and also filter out noise.

 

[AluminumStudios]

IMO there are two possible causes - one is noisy or bad power going into the monitor, the other is power lines running through the walls nearby. I used to work in a lab that had power lines running through the wall and any monitor put near it would shake, but if you moved the monitor to the other side of the room it was actually OK

As much of a pain as it is, try moving your computer to another location just to see if the shaking stops, it may be mangetic fields outside of your control if the monitor is fine elsewhere. If it does it everywhere then the best option might be some kind of power-line conditioner or a flat panel ...

 

[Matthias99]

I just answered one of these in Video; my response there follows:

Ah, Shaky Monitor Syndrome (SMS). I used to fix this all the time when I worked tech support.

Invariably, the source was an electrical motor (such as a fan, air conditioner, fridge, etc.) either on the same circuit as, or physically very close to, the monitor or the VGA cable. Transformers (such as the power "bricks" that things like printers and scanners use) also screw with the video signal pretty badly.

It sounds like you already tried a different circuit -- try physically moving the monitor/computer to a different location and see if the problem persists. If it goes away in a different room, you have something nearby causing interference. It is also possible (although unlikely) that your monitor or VGA cable are defective. Usually when a monitor goes bad it's much more obvious, though.

It is also (as noted) possible that badly shielded electrical wiring (or nearby power lines or other EMF sources) are causing the problem. In these cases, there isn't much you can do other than getting an LCD monitor and running it over a DVI input (which eliminates the noise problem).

 

[Looney]

Originally posted by: ku
Or that apartment could just have bad electrical wiring... like mine T)_T

Most likely this is the problem. My house has over 15 fridges/freezers, so my lines are very dirty, and i use to get the monitor shaking with my monitor as well. People will tell you to get a powerbar or UPS, but they don't work... powerbar is definitely crap, and a UPS, only the higher end ones do. The Smart UPS. If you buy other noname brand UPS with things like 'voltage regulator' and stuff like that, they won't clean up the lines. I'm told an actual line conditioner will also work, but for the price of a line conditioner, you can get a Smart UPS.

What the Smart UPS does is actually charge the internal battery into DC, then convert it back into AC for your monitor use. 'Voltage Regulators' or other cheaper forms don't do this... what they do is simply watch for the peaks and such, and cuts them off, but they don't clean the lines themselves.

 

[Looney]

Originally posted by: VirtualLarry
99% of the time, it's a power problem. I've noticed it happening here, in the morning especially. Look into getting a UPS with AVR, those can help "smooth out" voltage dips in the mains AC power, and also filter out noise.

This is what i'm talking about... AVR will NOT work. They don't actually clean up the lines, they just protect against extreme dips and peaks, like what you get from brownouts and stuff. But your monitor problem is consistent dirty waves that causes the shaking.

I went through 4 different UPS and their clones to finally discover that it's the SMART UPS that you need.