Originally Posted by dek8
im very new to linux and not sure exactly what to expect, the way to have things working and its limitations.
Graphics drivers for Linux (any GPU) are often problematic in some way, but it should usually be possible to do some workaround to get it running properly. Get used to editing /etc/X11/xorg.conf (this must be done as root!)
In this case, you probably need to manually set the refresh rate, rather than allowing the nvidia driver to automatically pick refresh rate settings. The relevant sections from my xorg.conf look like this:
ModelName "Dell Alienware2310"
HorizSync 30.0 - 140.0
VendorName "NVIDIA Corporation"
BoardName "GeForce GTX 275"
Option "UseEdidFreqs" "no"
The important lines are VertRefresh and UseEdidFreqs.
I'm using driver version 256.35 and don't get any visual artifacts (it's not possible to use pre- 256 series drivers with the Dell 2310, because the brightness is set at 100% and changing it is disabled).
You need to restart Xorg to get changes to xorg.conf to be applied.
EDIT: if you break xorg.conf and can't start Xorg anymore, delete it and run nvidia-xconfig to generate it again.