NVIDIA Pixel Clock Patcher

[ToastyX]

(05-13-2016 04:44 PM)pmellow Wrote:  I've had an Asus VG236HE which can run 1080p@120hz with DVI-D Dual Link & HDMI ports (which shouldn't be able to support 120hz). I used the monitor via HDMI connected to my laptop and it was able to run 1024*768@75hz (it requires around 78MHz of pixel clock) and as I've learned from googling a lot recently, I found out that HDMI should be able to carry at least 165MHz pixel clock, and what I wanted is to run the Monitor at 1024*768@120hz via HDMI, which should require around 97MHz of pixel clock. Shouldn't HDMI be able to do it? Why only 75hz is able to be selected in Window Resolution Customization?

Windows only lists resolutions that are in the EDID. Since 1920x1080 @ 120 Hz is not available, the monitor must define 1024x768 @ 120 Hz in the EDID for it to be available in the Windows screen resolution settings. CRU creates EDID overrides, but Intel's driver doesn't support EDID overrides. You'd have to create a custom resolution through Intel's control panel if possible.

(05-13-2016 04:44 PM)pmellow Wrote:  So the question is, will I be able to select up to 1024*768@120hz after I use the patcher without using CRU? Because my laptop is Switchable Graphic Cards (Intel+NVIDIA750m) and from what you replied to the comment above, I found out that CRU won't work in this case
but what if I use the patch to unlock the limit of HDMI, will it be 120hz in the Window resolution panel to selected? Since I will be using 120hz monitor anyway, it shouldn't have to be overclocked. Will it work in this case?

The patch won't have any effect with switchable graphics because Intel's driver handles the resolutions, not NVIDIA.

(05-13-2016 04:44 PM)pmellow Wrote:  so, 120Hz Monitor > HDMI > Unpatched Driver > only 1024*768@75Hz
120Hz Monitor > HDMI > Patched Driver > 1024*768@120Hz selectable?

You shouldn't need the patch for 1024x768 @ 120 Hz because that's less than 165 MHz. The patch would allow 1920x1080 @ 120 Hz without using CRU if it's defined in the monitor's EDID. It won't add resolutions that aren't in the EDID, but GPU scaling would make 1024x768 @ 120 Hz available automatically as a scaled resolution if 1920x1080 @ 120 Hz is available.