Custom Resolution Utility (CRU)

[ToastyX]

(02-21-2020 11:00 PM)wacha Wrote:  Long story short, most of my GPUs will only do 1080p using the adapter cable, and I think it's because of the 165Mhz pixel clock limitation of SL DVI. Using your patches I've been able to display 1440p with the supported cards I have in my possesion. The thing is that most of the GPUs I need to display 1440p are older that those supported, even though some of them can use drivers supported by the patchers. Most of the supported cards already do 1440p over HDMI or DP, what I need is to be able to do 1440p with DVI-I only cards over an HDMI converter. Is there a reason the limitation can be overcome with a GTX 400 series card o an HD 5000 series card and not a GTX 295 or HD 3870 X2 that use the same drivers?

Older cards have the limits defined in the firmware, so it's not easy to find where in the driver that's being checked. Newer cards use the values defined in the driver.

There's one trick that might work with older cards if you're trying to do DVI to HDMI:

First, use CRU to delete the extension block, or remove HDMI support from it. That will make it send a DVI signal instead of HDMI.

Then rename the patcher to whatever-patcher-single.exe and patch the driver. That will make it always send a single-link DVI signal.