Monitor interference?

Hey everyone,

Ive purchased a new monitor at long last and am overall very impressed, however.

When gaming i get horizontal faint lines/walking pixels etc all over the screen, faint but annoying.

First off i have one idea that could be the problem.

The VGA lead is right next to the power input on my laptop, could the full use of hardware be sucking up so much juice that it is causing interference on the monitor during 3d play?

If so could anyone lead me to a well shielded VGA lead to protect against this type of interference?

Any other possabilities?

Thanks everyone

 

I had the same issue, and I tracked it to using a VGA cable rather than HDMI or DVI. From what you wrote I believe your using VGA?

 

That is correct, from what i hear its interference, which seems to be true as low power profile does not display these lines any more.

I just need a thicker plug methinks hehe, but i cant be too sure, ive calibrated settings like clock and phase, there all set but still when in high perf.

Thanks for the reply

 

I have the same problem using vga out on my laptop. I've tried alot of different methods to fix it but haven't been successful yet. My vga output is about 10-12" from my power supply so I think it has something to with outputing high def via vga and not interference. Not sure if it exists but I'm thinking of trying a hdmi out to vga (I'm sure it does just haven't felt like looking and I assume if it works correctly it will cost alot) and see what happens since I don't want to shell out another $150-200 to have a monitor with hdmi in.

 

does the same thing happen when you're on battery power?

I think if you change the 3 pin plug (on your notebook ac adapter) to a 2 pin plug it should stop the problem.

Basically I think you have a grounding problem.

I have the same thing, but when I'm on battery power it's fine. I did try using a two pin plug and it did solve my problem.
Also I think if you call MSI they should send you a free AC adapter with a 2 pin plug.

 

Yah, i think different groundings helps too.

I do have a solution now though.

On my msi machine, the power in is next to vga out.

The laptop is plugged directly into mains in the wall, and the monitor hidden behind speakers plugged into a floating charger.

What i did was cross the power over the vga plastic coating and it seems to have stopped any problems im having. (So definately voltage, we can buy decent vga plugs to shield it though)

I also ran a test on a really good site i found to calibrate some of the phase and clock settings and now its perfect, im so happy i bought this monitor

Will post pics of what i did later.

 

I have the same faint horizontal interference lines when connected to a Sony Bravia TV using the VGA port. I can only see the interference looking close at the TV screen (3' to 5' away) on a white background, for example Windows Explorer in XP. I purchased a fairly expensive VGA cable with ferrite cores on both ends and it doesn't help. This interference is caused by the CPU cooling fan which is very close to the VGA output. The faint horizontal lines seem move around rapidly when the CPU is busy (you can probably hear the cooling fan when it goes to max RPM or close, depending on the CPU process).

 

Hmm odd, i can ramp cpu up to full and not have the problem, yet when i move stuff around i can make it "semi" work, ive lost my perfect picture though after i moved my room around.

Im certain its got to be voltages, unless its something else, im going to run a prime95 to get the nb cooking to see if its that.

***UPD*****

Cooked with prime95 a bit, its not northbridge or cpu :/, and i did a furmark test, the GPU under full load doesnt trigger anything either, im still convinced its voltages or something that ive missed.

 

Try a VGA to DVI adapter connected to a DVI to DVI cable between the adapter and monitor, if you have those available.

 

can you try it just on battery power, I belive this will not happen when you're just on battery power. Like I said before, I think it's a grounding problem causing the interference. If it is a grounding problem then MSI should fix it for free even if you're not under warrenty. They could send you an AC cord that has only the 2 pin plug (so the ground pin is not there) and it could fix it if I'm right.

 

Nothing will happen on battery, majority of machines downclock and less voltage is needed, the GPU cannot be force full powered either when on battery so im not getting any lines, the grounded thing does seem best though, but still a heavily shielded plug should do the trick, i will try both vga and a new ac cord and hope for the best .