Custom Resolution Utility (CRU)

[ToastyX]

(03-07-2016 04:59 AM)Dae Wrote:  - 1920x1080 100Hz is added under the "Ultra HD, HD, SD", but in reality this is 99Hz as reported by TV. Causes artifacts (random lines) on the screen. When 1920x1080@100Hz (247,5MHz, see the image attachment) custom resolution is added using nvidia control panel instead, TV reports is as 100Hz and there are no artifacts at all.

The 100 Hz TV resolution doesn't have the same timing parameters as the ones shown in the NVIDIA control panel. It has a horizontal front porch of 528 and a horizontal total of 2640, which your TV doesn't seem to like. You have to add 100 Hz as a detailed resolution instead. The "LCD native" timing option will give you the timing parameters you need.

(03-07-2016 04:59 AM)Dae Wrote:  - As the added 100Hz is not correctly flagged as native/default refresh rate, I'm still getting 60hz instead of 100Hz (or instead of 99hz, in this CRU bug case) when playing any game with the 1920x1080 resolution.

All I want is to change the EDID profile so that instead of 60Hz it will default to 100Hz (and not 99Hz) @ 1920x1080. 60Hz should still remain as a supported refresh rate, though.

If there's an alternative solution to enable 100Hz in a game that has no option to select refresh rate, that would be great too.

The first detailed resolution is considered the native resolution. The "native format" option isn't really used for anything, but it's included in CRU because it's part of the EDID.

(03-07-2016 04:59 AM)Dae Wrote:  EDIT: I noticed that if I load the TV EDID to CRU, then only change the 1080p60 to 1080p100 @ main screen detailed resolutions, I'll get 1080p100(native) under "PC" in the "change resolution" tab in nvidia control panel. This is the correct 100Hz as reported by TV.

Also, if I first select this display mode and then launch a game using 1920x1080, I'm finally getting the right 100Hz ingame! But if I'm using the native 3840x2160@60Hz in Windows and then launch the game, I'm getting the normal 1920x1080@60Hz instead of 100Hz. So now we need somehow to get the 100Hz to have a higher priority than 60Hz, even though 1920x1080@100Hz is already reported by nvidia as native, albeit under "PC" instead of under the tv resolutions "Ultra HD, HD, SD".

EDIT2: By deleting all the 1920x1080@60Hz in CRU TV resolutions I'm getting the correct 1920x1080@100Hz in-game even when launching outside that resolution. If I add 1920x1080@60Hz to either TV resolutions or Detailed/Standard resolutions in CRU, 60Hz is once again used in-game unless I launch the game while in 100Hz.

Some games use the desktop refresh rate. Try setting "Preferred refresh rate" to "Highest available" under "Manage 3D settings" in the NVIDIA control panel. If that doesn't work and the game doesn't have an option to set the refresh rate, you have to change the refresh rate before starting the game. There's no way around this other than to delete 60 Hz.