The monitor is only capable to use 60 Hz @ 1920*1080.
After the use of my DK2 the monitor shows massive tearing in normal desktop mode. 3D games on my monitor are fine with activated vsync, but as i dunno how to explicit force vsync in desktop-mode i have very annoying tearing while watching videos (no matter what player, netflix etc.) everything in desktop mode 'tears'. (i can test this with a fast moving window dragged to the mouse).
as i installed the new nvidia driver and checked "fresh install" everything was fine again. no teraing at all (like it should be).
today i played a session ED (first oculus use after the nvidia-driver-install) and BAAAM... the tearing is back.
this really sux. it doesn't matter if the oculus is turned off nor in which mode it is set.