I'd tried endlessly to calibrate my Samsung S23A550H display connected to both my 560Ti and my 660Ti.
No matter what the configuration, I could not get black to look correct, and all the colors were washed out.
I finally found out why. The Nvidia driver detects 1080p COMPUTER MONIOTRS, capable of RGB 0-255, as "HDTV's" and ONLY uses RGB 15-235 with them!
This means that no matter how well you attempt to calibrate a full RGB capable monitor, your color/black level will be totally screwed up!
I am currently using a registry edit fix, which sucks, because it's absurd that everyone with Titan's in surround etc. have paid all this money, and have to manually edit their registry to get the right color! I found out about this, and I am SERIOUSLY pissed off!
The reason I am pissed off, is that Nvidia has known about this issue for YEARS! https://forums.geforce.com/default/topi ... are-wrong/
There's a post from 2009 with the BS fix I had to use! There are posts all over the internet about this, and AMD has a toggle in their driver control panel specifically to fix it. Nvidia has one that only applies to videos, and DOES NOT correct this.
Setting a custom refresh rate/resolution fixes it, but that gets reset most of the time when you play a game, and causes issues and crashes.
Being the Nvidia fanboy that I am, I am even more pissed off about this image destroying issue that goes unfixed! Everyone noticed how broken CrossFire was, and that was only known about since 2011. This goes even further back and its as simple as them adding a few lines of code to their driver installer!
If you have an HDMI connected(or DVI to HDMI) Nvidia setup, please try setting a custom resolution 1920x1080 at 59Hz, make sure the desktop color is RGB(NOT YCrBr4:4:4 which is compressed!), and watch the black become black. If you calibrated with the wrong black level, your colors will be weird too, since you likely have contrast set too high in an attempt to compensate.
You can do the registry edit BS like I did, but I want a REAL FIX.
With the CrossFire issues being fixed, thanks to the articles on here and PCPer, I hope that this issue can get enough attention for Nvidia to do the simple work required to fix it! It's way easier than making multi-GPU work, which they've done!