How to Dial In HDR, Armoury Crate and OLED Care on the ROG Xbox Ally X20

The ROG Xbox Ally X20 went on sale today, October 15, as ASUS's 20th-anniversary handheld and the first in the Ally line with an OLED screen. The 7.4-inch "Nebula HDR Display" ships HDR-ready out of the box, which sounds convenient until you realize most of its settings are scattered across three different menus: Windows, Armoury Crate and whatever HDR options a given game exposes. Get any one of them wrong and HDR can look washed out, overly dim or blown-out rather than the punchy, true-black picture the panel is capable of. ASUS's own pre-order announcement confirms the standalone unit at $1,299, and ROG has since published a dedicated configuration walkthrough that this guide draws from directly, cross-checked against the device's official specs. Most of the steps below also apply to the cheaper Ally X's LCD panel, with the exception of the OLED-specific maintenance settings further down, so it's worth reading even if the X20 isn't the model in your hands.

Why This Screen Needs Its Own Setup Pass

The X20's panel is a genuine spec jump over the LCD on the original Ally X: 7.4 inches at 1920x1080, 120Hz with FreeSync Premium Pro, VESA DisplayHDR 1000 certification and a peak brightness ASUS rates at 1,400 nits, versus roughly 500 nits on the outgoing IPS model. Corning Gorilla Glass with DXC coating also cuts glare by a claimed 65%. OLED's per-pixel lighting is what makes true HDR possible on a handheld this size, but it also means the default calibration leans toward a vivid, store-demo look rather than a calibrated one, and the panel needs its own maintenance settings to avoid burn-in over months of static HUDs and UI elements. Everything else inside the chassis carries over unchanged from the Ally X: the same AMD Ryzen AI Z2 Extreme chip, 24GB of LPDDR5X-8000 memory and a 1TB SSD, so none of the settings below trade away performance headroom for the better screen.

Start With Windows, Then Leave It Alone

HDR and Auto HDR are already switched on when you first boot the X20. ASUS's guide is specific about what not to touch here: skip the Windows HDR Calibration app, and leave the HDR Content Brightness slider under System > Display at its default value of 57. Moving that slider is the most common reason HDR looks wrong on a freshly unboxed Ally, since it overrides the panel's factory calibration. The one Windows toggle worth considering is "Change brightness based on content," also under System > Display; switching it off keeps HDR scenes from dimming unexpectedly, at a small cost to battery life.

Pick an Armoury Crate Color Profile

Armoury Crate asks you to choose a color mode the first time it launches: HDR Native, which targets the colors and shadow detail a game's developers intended, or HDR Vivid, which pushes saturation further for a punchier look. You can switch later from Settings > Display > GameVisual, using the Color Gamut dropdown, and a Reset button on that same page restores the factory calibration if you've overcorrected. There's no universally "right" choice here; Native is the more accurate baseline for photo-real games, while Vivid suits stylized or arcade-style titles.

Calibrate HDR Inside Each Game

Windows and Armoury Crate only set the stage; the real calibration happens per title. ASUS's recommended sequence: open the game's video or graphics menu, turn HDR on, and run its HDR brightness calibration wizard if one exists. Set the black level to its lowest option first. For peak brightness, enter 1,400 nits if the game asks for a specific number. If it instead shows a slider with a test patch, set the Ally's own brightness to 70% in the Command Center, then raise the in-game Peak Brightness control until the patch turns fully white; full-screen white test patterns top out closer to 700 nits on this panel. Leave Reference White, Paper White or Midtone sliders at their defaults unless the image looks consistently too bright or too dark for your room.

Auto HDR, which is on by default, fills the gap for the hundreds of SDR-only games that don't have native HDR support, applying algorithmic tone mapping rather than a developer-tuned result. ASUS's guide recommends trying a game's own HDR implementation first and falling back to Auto HDR only when nothing native exists. Neither adds meaningful input lag, and Auto HDR's GPU overhead is small enough that most players won't notice it.

Protect the Panel With OLED Care

Unlike the Ally X's LCD, the X20's OLED needs routine upkeep. Settings > Display > OLED Settings groups the relevant toggles under OLED Care: the display auto-dims and switches off after a few idle minutes, a Pixel Shift routine nudges the image by a single pixel at random intervals, and a Pixel Refresh cycle runs a short screensaver pattern to even out wear when the console is plugged in and idle. ASUS's own example pairs leaving the display on while charging with Pixel Refresh kicking in after 10 minutes, which is a reasonable default if you dock the Ally overnight. The underlying advice is the same as any OLED device: avoid parking a static HUD, map or inventory screen on screen for hours at a stretch. It's also worth opening Armoury Crate SE's own Update Center before diving into any of this, since ROG's recent software update has been adding display and button-mapping features on a rolling basis, and an out-of-date install can leave menu options missing or mislabeled.

When to Turn HDR Off

HDR isn't always the better setting. Armoury Crate's GameVisual filters built for competitive shooters and strategy games, which boost shadow visibility or sharpen the image, don't function correctly alongside HDR, so switch to SDR for those genres. In direct sunlight or other very bright environments, dropping HDR lets you push overall brightness higher in games that lack their own Paper White-style control. To toggle it per session, press the Xbox button, open the Settings tab, then More Settings > Gaming Features, and flip "Use HDR" off or back on. If you want to compare HDR and SDR fairly, match the equivalent profiles: HDR Native against the sRGB color gamut, or HDR Vivid against "Native — default vivid colors."

The payoff for working through all three layers once is that the X20 holds its calibration afterward; none of these settings need revisiting between games unless you're troubleshooting a specific title. ROG's full HDR configuration walkthrough covers additional edge cases, including Dolby Vision support in compatible streaming apps, and its companion piece rounds up HDR games worth testing the new screen on once it's dialed in.