If the DLSS Frame Generation option sits greyed out in AION 2, you’re probably about to reinstall your driver, verify game files, and blame Nvidia. Stop. The option is almost never broken. It’s locked because a chain of system-level prerequisites isn’t aligned — and you can fix that chain in about twenty minutes without touching your Windows installation.
To get straight to the answer: enable Hardware-Accelerated GPU Scheduling in Windows, restart your PC, disable G-Sync and enable V-Sync in the NVIDIA Control Panel, and relaunch AION 2 in fullscreen mode. That sequence resolves the majority of greyed-out cases. If it doesn’t, you move to driver-level overrides and a monitor configuration check.
The option is almost never broken.
The Lock Is Not the Game’s Fault
DLSS Frame Generation works by inserting synthesized frames between rendered ones. That process needs a specific combination of GPU scheduling, sync behavior, and driver hooks. When one of those pieces is missing, the engine simply hides the option. AION 2 doesn’t grey it out because the feature is unsupported — Nvidia has already shipped a day-1 Game Ready driver with DLSS 4.5 super resolution and multi-frame generation support for global AION 2. The option is present in the menu. It’s just disabled until the environment is correct.
The most common culprit by far is Hardware-Accelerated GPU Scheduling, or HAGS. Frame generation relies on it to bypass part of the CPU scheduling bottleneck. On a stock Windows install, HAGS is often off, especially if you’ve disabled it for an older game. The fix isn’t complicated, but it requires a restart.
One counterargument: “It’s a game bug, look at all the forum posts.” Fair enough. There are always forum posts. But the same greyed-out symptom across thousands of Unreal Engine titles — from WARDOGS to AION 2 — points in one direction. If the feature were genuinely broken, a clean driver install wouldn’t unlock it. The NVIDIA app’s override settings wouldn’t change anything either. They do. That alone kills the “bug” theory.
Step 1: Turn On Hardware-Accelerated GPU Scheduling
Open the Windows search bar, type Graphics Settings, and go to the advanced graphics settings section. Toggle Hardware-Accelerated GPU Scheduling to On. Restart your PC. Do not skip the restart — the setting doesn’t apply otherwise.
After the restart, check the in-game option again. If that alone unlocks it, you’re done. If not, move to the sync settings.
Step 2: Disable G-Sync, Enable V-Sync in NVIDIA Control Panel
Launch the NVIDIA Control Panel and select Manage 3D Settings. Find AION 2 in the program list. If it isn’t there, add it manually. Set Vertical Sync to On.
Here’s the part that surprises people: you also need to disable G-Sync for the game. This applies even if you’re on an RTX 5000-series laptop with G-Sync enabled on the display. Frame generation and G-Sync conflict when the driver tries to keep the monitor’s refresh rate in sync with synthesized frames. The result is a greyed-out toggle.
So: set G-Sync off for AION 2, V-Sync on, apply, then restart the game. Switch the game to fullscreen mode. Borderless windowed can still work, but fullscreen is the most reliable.
Step 3: If Still Greyed Out, Override the Driver
Nvidia’s newer app lets you override DLSS settings at the driver level. Open the NVIDIA App, go to Graphics, select AION 2, and look for DLSS Override Frame Generation. If you see an Edit option, set it to “Use 3D app settings,” apply, and retry. If the option still refuses to appear in-game, try “Recommended,” or manually set a custom preset like A or B for frame generation.
The same menu has a Smooth Motion toggle. If it’s off, turn it on. Nvidia’s smooth motion can force an interpolation path that makes the in-game toggle activate.
Step 4: Attack the Monitor and Resolution Variables
A surprising number of greyed-out cases trace back to display configuration, not GPUs.
- If you’re using a 21:9 monitor, switch the game’s resolution to a standard 16:9 format like 1920×1080. The frame generation pipeline has known quirks with ultraaaaaa-wide aspect ratios in this engine.
- Disconnect a second monitor and launch the game on only one display. Multi-monitor setups trigger DRM and driver handoffs that occasionally disable the toggle.
- Make sure Windows and the game are running at the same refresh rate. Manually set the resolution and refresh rate in both places.
If none of those work, reinstall the driver with a clean installation. On the Nvidia website, select your GPU and OS, download the latest Game Ready Driver, and during install choose Custom, then tick “Perform a clean installation.” The clean install removes leftover settings from previous drivers, including corrupted shader caches that can confuse frame generation.
Which Fix Should You Try First?
Not every fix deserves the same time. The table below shows the order and the likely payoff.
| Path | When to Use | Time Cost | Risk | Success Potential |
|---|---|---|---|---|
| HAGS + V-Sync + G-Sync off | Always start here — it fixes the majority of cases | 10–15 min | None | Highest |
| NVIDIA App override + Smooth Motion | If step 1 leaves the option locked | 5 min | Very low | High |
| Clean driver reinstall | If the above two fail | 20–30 min | Low — backup settings first | Medium-High |
| Change resolution to 16:9, one monitor | Only if you run ultra-wide or multi-display | 5 min | None | Situational |
Run them in that order. Jumping straight to a driver reinstall wastes time because most users never needed it.
That said, after you get frame generation working, spend a few minutes checking the actual output. AION 2’s UI can ghost during fast camera movement when frame generation is active, and you may prefer DLSS at “Quality” with frame gen off over a slightly unstable 100+ FPS. Once you see the difference, set it per your tolerance.
- Why is DLSS Frame Generation greyed out in AION 2?The option is locked because system prerequisites like Hardware-Accelerated GPU Scheduling are not enabled or configured correctly.
- How do I fix the greyed out DLSS Frame Generation in AION 2?Enable HAGS, disable G-Sync, enable V-Sync, and relaunch AION 2 in fullscreen mode.
