How can I add another refresh rate to Special K Fullscreen mode options?

[galumn]

My monitor supports 4 screen refresh rates; 50, 59, 60, and 75 Hertz. (pic[i.imgur.com])
But Special K only show 3 of them; 50, 60, and 75 Hertz (74.97 Hz). (pic[i.imgur.com])

How can I add a missing 59Hz to Special K?

There are some games that actually run at 59.94 FPS but report as 60 FPS in-game. So they will occasionally hitches when playing in 60Hz fullscreen or windowed mode.

Right now, I can to change to 59Hz through Display Settings. But it would be more convenient to be able to change refresh rate through Special K.

[[SK] Kaldaien]

You can try entering some fractional number in the INI file, but to get any of these weird rates you usually have to be very specific or the driver selects the closes match, which is problematic as you will see.


The technical refresh rate is 59.94, Special K rounded that up to 60.0 and found an existing match and so it removed the option to select 59.94 since it's ambiguous.


If you want to try a manual INI edit, these are where you need to focus:

RescanRatio=-1/1
RefreshRate=-1.0

RescanRatio is what DXGI actually uses. As humans, we like this stuff in decimal form and that's why RefreshRate is -1.0 instead of -1/1. RefreshRate is more of a human-readable convenience for the end-user.

If you want to try and get things up and running at 59.94 Hz (I don't know what the appeal is outside of old SDTV video), RescanRatio=5994/100 will probably make the driver happy.

[galumn]

Thank you, Kaldaien. That works.

[rant] I wish all pc games would just be released with unlocked refresh rate. In this day and age, I really don't understand why devs still have to lock their pc games at these fractional refresh rates. It really does nothing but make games jitter when playing at normal refresh rate. [/rant]