Solved: Two of my monitors are flickering.

[powerMarkymark]

I have tried everything.

The monitors are 19" Daytek 963DF and 19" Samsung SyncMaster 955DF. Both are on the same system as a dual monitor configuration,(Gamma in Sig) but I have tried them on two other of my systems, seperate and dual mode, with same results.

They are flickering as though the refresh rate is not high enough.

I have tried multiple combinations of resolutios and refresh rates.

There are no outside causes of electrostatic interference.

I'm stumped and frustrated as these are two of my most recent monitors but are ouit of warranty!

Any ideas?

Marc

 

[dmw16]

try:

reinstalling your video card drivers
plugging their power cords into another socket
moving them elsewhere in my house/domicile (to ensure no interference)
reformatting windows (do they flicker in BIOS?)

 

[powerMarkymark]

Originally posted by: dmw16
try:

reinstalling your video card drivers
plugging their power cords into another socket
moving them elsewhere in my house/domicile (to ensure no interference)
reformatting windows (do they flicker in BIOS?)

Will try the re-installing of drivers although the problem persists if they are connected on other machines.

Have tried pluging them in another socket.

Not very feasable to move the monitors to another room as all sytems are in my home office.

As for Bios, will have to check.

Will post results.

Much thanks for your sugestions.

 

[Matthias99]

Originally posted by: powerMarkymark
Have tried pluging them in another socket.

Have you tried them on another *circuit*? Often all the sockets in one room (or even in multiple rooms, especially in apartments) are on the same circuit, and so different 'plugs' are not necessarily going to help.

Not very feasable to move the monitors to another room as all sytems are in my home office.

However, if they work OK in another room, you may be able to further isolate whatever is causing the interference in your office and do something about it, so this is still worth checking out.

 

[powerMarkymark]

The new Ati drivers seem to have helped somewhat.

Will report back later.

Marc

 

[powerMarkymark]

Originally posted by: powerMarkymark
The new Ati drivers seem to have helped somewhat.

Will report back later.

Marc

Was wishful thinking, the problems persist.

 

[Operandi]

whats the refresh rate?

 

[powerMarkymark]

As I said before, have tried multiple combinations of resolutios and refresh rates, keep them at 100mhz.

 

[0roo0roo]

thats really odd, 100hz should be dandy. i have one crt at that rate hm. rather odd another pc would yield the same result. so older monitors not affected? same power circuit?

 

[VirtualLarry]

Well, normally I would suggest looking at power too, but I noticed something recently. I have a multi-boot system, and with the, I think, ATI 4.6 Cats, in W2K, my display was rock-solid. In WinXP, for whatever reason, the text was "shimmery", like the pixels were almost slightly swimming. Almost like one would see with an undercurrent situation on the monitor, but different. I haven't upgraded the drivers in XP yet, but it's very curious that one would see the effect in one OS but not the other, and it would manifest itself like a hardware problem.

(Curious, which version of the Cats was it, that was rumored to be "blowing up" monitors? It wasn't 4.6 was it? It does seem like something might be altering the analog signal output of the card, and I know that Radeon cards can change the "drive strength" of their analog output signals. Whatever it is, the effect is quite curious indeed.)

 

[powerMarkymark]

Seems it was electrical interference all along.

I have a Pioneer VSX-454 surround sound amp below the two monitors in question that was causing the flickering.

Funny thing is that this is how it has been for the last 2 years! Why it decided to do this now is beyond me.

Thanks everyone for your input.

Marc

 

[WobbleWobble]

I'm wondering if a UPS would help this problem? I've also seen something similar elsewhere, but the screen very subtly shakes instead of seeing flickering. Plugged it into another circuit and it's all good.

 

[powerMarkymark]

Originally posted by: WobbleWobble
I'm wondering if a UPS would help this problem? I've also seen something similar elsewhere, but the screen very subtly shakes instead of seeing flickering. Plugged it into another circuit and it's all good.

Just so happens I have a UPS, will try that.

Thanks for the suggestion.

Marc

 

[WobbleWobble]

Originally posted by: powerMarkymark

Originally posted by: WobbleWobble
I'm wondering if a UPS would help this problem? I've also seen something similar elsewhere, but the screen very subtly shakes instead of seeing flickering. Plugged it into another circuit and it's all good.

Just so happens I have a UPS, will try that.

Thanks for the suggestion.

Marc

That was a question, not a suggestion.

But please report the results

 

[mindblogg]

Possibly something wrong with video card.
Did you try increasing the refresh rates on the video card properties?

 

[TerryMathews]

Might not be applicable in this situation, but flickering can be caused by running 2 CRTs in close proximity @ the same refresh rate.

 

[powerMarkymark]

Originally posted by: WobbleWobble

Originally posted by: powerMarkymark

Originally posted by: WobbleWobble
I'm wondering if a UPS would help this problem? I've also seen something similar elsewhere, but the screen very subtly shakes instead of seeing flickering. Plugged it into another circuit and it's all good.

Just so happens I have a UPS, will try that.

Thanks for the suggestion.

Marc

That was a question, not a suggestion.

But please report the results

No noticeable difference with the two mionitors plugged into the UPS. :frown: