Problem with 7990 and LG M2550D

[sterizos]

Hello
I have a 7990 and I connected it to the LG M2550D monitor via a dvi adaptor.The weird thing is that the lcd shakes a little bit only in some colours (white,grey etc) and I have to stare at it so I can notice it.
I didnt try another cable since I dont have now.I also reinstalled all the latest drivers but the problem remains.
Here is a video so you can notice what do I mean.Please help.
I also ran furmark and occt for 1 hour and it didnt crash or showed something strange.
I dont know if the problem comes from my monitor or my card or from my dvi cable.

https://www.youtube.com/watch?v=0B3I...ature=youtu.be

[STEvil]

try adjusting GPU and memory clock speeds for the 7990. Sometimes low clocks cause issues. Otherwise it might be due to using the DVI adaptor and you will need to see if you can manually adjust your vsync to see if it helps.

[sterizos]

Hi
thanks for the reply.clock speeds are in default.Didnt oc.I noticed that this trembling is occuring when the resolution is 1920x1080.If i lower the resolution then this trembling dissapears.Is this problem from the card or monitor?

[STEvil]

Could be either. Try as suggested in previous post.