Xbox HDR Calibration app - HDR Optimized Settings (Patreon)

The idea behind having the same calibrated system-wide HDR settings (or "metadata") for all HDR games is noble and both Microsoft and Sony really tried to make this a reality in order to finally fix the pain in the ass the average user is facing manually adjusting in-game HDR to the real HDR capabilities of the TV in a different way: every time, on every game. (if he's lucky enough to have the bare minimum control over it, of course).

Unfortunately, even if system HDR Calibration is a reality for years now, very few games (and devs) actually leveraged on it.

For those cases, let's see the Optimized values for Xbox HDR Calibration app:

• Press LT + LB + RT + RB at the same time.
• Then check in the upper right corner the current entered values for each of the three section of the app.

If you have an LG OLED and:

> you're using Dynamic Tone Mapping or Dynamic Contrast, set:

• First screen / MinTML: 0.000
• Second screen / MaxTML 4.000
• Third screen / MaxFFTML: 4.000

> you're using HGIG:

• First screen / MinTML: 0.000
• Second screen / MaxTML: 800 or 1.000 (for G2) or 1.500 (for G3)
• Third screen / MaxFFTML: 800 or 1.000 (for G2) or 1.500 (for G3)

If you don't have an LG OLED and:

> you don't have an HGIG option:

• First screen / MinTML: 0.000
• Second screen / MaxTML: Increase it until the logo will totally disappear
• Third screen / MaxFFTML: Increase it until the logo will totally disappear

> you're using HGIG:

• First screen / MinTML: 0.000
• Second screen / MaxTML: Set your real TV Peak HDR Brightness (in nits)
• Third screen / MaxFFTML: Set your real TV Peak HDR Brightness (in nits)

Much easier and accurate than PS5 HDR Calibration app.