Custom Resolution Utility (CRU)

[ToastyX]

(04-12-2014 12:23 PM)monitor Wrote:  Thanks for the explanation. At first i was trying to downsample with CRU but all it resulted in was a blurry screen. So i then decided to see if i could improve the monitor with different settings. What i dont understand is that if there are no best settings and higher or lower settings dont matter then why are the still shipping 60Hz IPS monitors when those monitors are capable of at least 72Hz ?

Manufacturers don't seem to care. They must not consider it a significant market.

While there are no best settings, there are standards to make sure everything can interoperate with each other. For 1920x1080 monitors, 72 Hz with standard timing parameters exceeds the 165 MHz pixel clock limit for single-link DVI. Using dual-link DVI would increase cost and reduce compatibility with systems that don't have dual-link DVI. It could be done with HDMI, but only newer GPUs support going past 165 MHz with HDMI, and HDMI requires paying royalties.

In reality, interoperability shouldn't even be a concern because monitors report what settings to use in the EDID. 1920x1080 @ 72-75 Hz could also be done with non-standard timing parameters, but that's not commonly done. I've only seen 144 Hz monitors use non-standard timing parameters to fit 144 Hz under 330 MHz, and the same timing parameters could be used to fit 72 Hz within 165 MHz.

Regardless, it's technically possible and not even that difficult, so they must not care enough to offer 72-75 Hz IPS monitors.