Custom Resolution Utility (CRU)

[Asterra]

(07-27-2016 12:19 AM)ToastyX Wrote:  Using the "LCD reduced" timing parameters might cause the driver to treat it as a PC resolution, which would force RGB 4:4:4, so that might be what he was seeing. If you're not seeing any changes, did you make sure to choose the "Custom extension block" option? NVIDIA doesn't support the "Default extension block" option and will ignore any changes unless you override the extension block. If you need YCbCr 4:4:4, you need to add an HDMI support data block in the custom extension block, or import one of the hdmi.dat files in the main post.

Well what do you know. Making that change actually corrected the problem and I now, finally, have 4:4:4 from my new Nvidia card. Thank you for the pointer.

I am just really, really lucky that this app exists because the only other solution was to begin musical chairs with adaptive displayport-to-HDMI adapters and hope I got one that actually worked, as reportedly most of them don't actually fool the Nvidia drivers.