NVIDIA Pixel Clock Patcher

[ToastyX]

(09-06-2015 05:55 PM)rcarlos243 Wrote:  Hi I have an Asus G751JT-CH71 and it has NVIDIA GTX 970M (non-optimus enabled) and an IPS Panel.

The panel is LP173WF4-SPD1 and AFAIK it is connected via 2 lanes of eDP.

I was able to put mobile g-sync hack into it and overclock the laptop LCD to 103Hz without frame skipping.

According to NVIDIA the pixel clock frequency is 238.0206Mhz.

If I try 104Hz or anything higher it would black screen freeze. I also tried CVT reduced blanking but it didn't made any difference.

Is the problem due to pixel clock limitation, cable, or something else?

http://imgur.com/a/1D1BW#0

The pixel clock might be limited to 240 MHz. The patch is only for DVI and HDMI. It will not affect DisplayPort limits.

Using CVT reduced blanking will not help in this case. It would actually increase the pixel clock compared to the automatic timing parameters. You need to reduce the total pixels to reduce the pixel clock.