Persona 5 The Phantom X – How to Fix Ultrawide Monitor Black Bars

Last Updated on 8 July, 2025

If you’re playing Persona 5 The Phantom X on a 32:9 or higher ultrawide monitor, chances are you’re stuck with black bars.

The game has some support for ultrawide, but not full native scaling beyond 21:9. Fortunately, there’s a simple fix.

In this quick guide, we’ll show you how to make Persona 5 Phantom X run in fullscreen ultrawide using a free tool, no registry edits or mods required.

Just getting started with the game? Don’t miss our Beginner Guide for Persona 5 The Phantom X and Best Reroll Picks here.

What’s the Ultrawide Issue in P5X?

Even though Persona 5 The Phantom X runs well on most systems, it limits ultrawide support to 21:9, cutting off wider resolutions like 32:9 or super ultrawide.

You’ll see:

• Black bars on both sides

• Cropped visuals

• No in-game option to fix it

Thankfully, this isn’t a hard limitation. The engine can scale, but it doesn’t let players adjust it natively.

How to Fix Ultrawide in Persona 5 The Phantom X

The easiest and safest method is by using a tool called Borderless Gaming. It tricks the game into stretching cleanly to your full screen.

Step-by-Step Instructions

1. Download Borderless Gaming
   Go to the GitHub page here and grab the latest .exe under Assets.

2. Install and Launch Borderless Gaming
   It’ll appear as a small BG icon in your system tray.

3. Launch Persona 5 The Phantom X
   Set the Display Mode to Windowed in Settings.
   This is crucial — the tool only works in Windowed Mode.

4. Add the Game to Favorites
   In Borderless Gaming:

   • Find Persona 5 Phantom X under Applications

   • Click the → arrow to add to Favorites

5. Enable Fullscreen + Auto-Maximize

   • Right-click the game in Favorites

   • Enable “Fullscreen” and “Auto-Maximize”

Done. The black bars are gone, and the game will now stretch to fit your full ultrawide screen.

Why This Works

The Persona 5 The Phantom X game engine technically supports all resolutions, but the UI layer is locked to specific aspect ratios.

Borderless Gaming works by force-maximizing the window without messing with files or registry edits.

Bonus Performance Tips

• ✅ Unlocked framerate: Available if VSync is disabled

• ✅ Steam Deck support: Runs at stable 60 FPS with mixed medium-high settings

• ✅ FSR (FidelityFX) is supported

• ❌ No DLSS support (as of v1.0)