GTX 950 can't do 4:4:4 chroma @ 4k with more than one other monitor connected

Darknite39

Senior member
May 18, 2004
252
0
76
I'm at a loss. I just installed a 950 with the drivers from EVGA's website, and I have a Samsung JU6500. I've got a second 1200p monitor connected via DVI, and it doesn't matter if it's connected to the mobo port (it's a Haswell board) or to the video card's DVI port--if I connect a third (1080p) monitor (to either the mobo or the card), I lose 4:4:4 chroma on the 4K display (connected to the HDMI 2.0 port on the card). It's repeatable. I can unplug the third monitor and, after the monitors blink, get true 4:4:4 and plug it back in and lose it (although the NVIDIA control panel still says it's 4:4:4).

Any ideas? I'm running the newest driver set. My PC bluescreened the first couple of times I tried to change my 4k from 30Hz to 60Hz, but it finally started working ok, aside from the third monitor issue. I promised myself to never buy NVIDIA due to the company's video chip killing my thinkpad, but HDMI 2.0 was too good to pass up (or so I thought).

Thanks for any advice! :)
 

TheRyuu

Diamond Member
Dec 3, 2005
5,479
14
81
Is the driver from the nvidia site any newer? There's no reason to use the one from the manufacturers site. It probably won't help but we should at least establish the latest one doesn't work either.