[SOLVED] GeForce GTX 460 not picking up refresh rate on modern LCD monitors

[Andalu]

On 1/13/2024 at 8:34 PM, xrayer said:

Hi, thanks for info about the patch, I've been waiting for this a long time and I believed it could be patched such way, that it's just some stupid constant nvidiot's limitation...

Well, from what I read, it seems this patch unlock HDMI output only, not the DisplayPort, well?
Did/can someone try this if it will work also for 4k resolution @60Hz? I would like to try this but I have access to 4k monitor only at work and my GTX970 is in home PC and both things are not small enought to take it in a pocket or bag to meet them 😀

 

On 1/23/2024 at 5:50 AM, xrayer said:

I tested the patch on GTX 970 and Dell 4k LCD and the HDMI pixel clock limit patch works but there's another artifical limitation to max 1600p! It needs to ba patched too... I played with custom modes and timings. The max I can reach is 3840x1600 @89Hz - near 600MHz pixel clock. But Anything over 1600p is immediatelly refused - test mode failed. I need to remove this limit to utilize the native 4k resolution 3840x2160, pixel clock is enough to get 60Hz, maybe a bit more.

Hi,
using versions 368.81 of the nv4_disp.dll and nv4_mini.sys files modified to achieve 600MHz pixel clock, I was able to get 4k resolution (3840x2160) at 60Hz with a GeForce GTX960 connected to an LG32UQ850V 4k monitor via an HDMI-to-HDMI cable:

 

 

The same result can be obtained by using the modified version 355.98 of the same files.

A DP-to-DP cable connection allows 4K resolution, but only at 30 Hz, so the changes only cover the HDMI connection. The 3840x2160 resolution at 60Hz can also be achieved by using an HDMI-to-DP cable from the GPU to the monitor’s DP port.

So far, I haven’t encountered any issues, although I haven’t do intensive use on the test PC and, more importantly, I haven’t tested it with games.

Edited March 15 by Andalu