Bug Report: Marker rotation stutters on high-refresh-rate displays — app locked to 45Hz (Android)

[Cesarin76]

App: Map Marker (com.exlyo.mapmarker)
Version tested: 3.19.0 (versionCode 839)
Platform: Android 16, Motorola device with a 120Hz-capable display (confirmed via adb bugreport)

SUMMARY

The map marker's rotation animation (heading/compass indicator) appears visibly choppy/stuttering compared to other navigation apps (e.g. HERE WeGo, Google Maps) on the same device. Root cause identified via dumpsys SurfaceFlinger / DisplayDeviceRepository logs captured in an Android bug report: the OS is explicitly throttling the app's rendering to 45Hz, while the display's native refresh rate is up to 120Hz (confirmed elsewhere in the same log as renderFrameRate=120.00001).

Relevant log lines:

DisplayDeviceRepository: Display device changed render timings: "Pantalla integrada", renderFrameRate=90.0, presentationDeadlineNanos=11500000, appVsyncOffsetNanos=9166667, frameRateOverrides=[{uid=10411 frameRateHz=45.0}]

SurfaceFlinger: setPreferredRefreshRateForUid uid: 10411, rate:45.000000

(uid 10411 = com.exlyo.mapmarker in this session)

The window info for MainActivity also shows:

requestedFrameRate: {0.00 Hz FrameRateCompatibility::Default FrameRateCategory::Normal}

i.e. the app is not requesting any specific frame rate at all, so the platform's default frame-rate voting logic is choosing a conservative rate for it.

ROOT CAUSE

This matches a long-standing, well-documented Flutter/Android issue: Flutter apps do not opt into the display's maximum refresh rate by default, so Android's per-app frame rate policy falls back to a lower rate unless the app explicitly requests a higher one via the platform APIs added in Android 11 (API 30):

• Surface.setFrameRate() / Window.getAttributes().preferredRefreshRate
• or the community package flutter_displaymode (https://pub.dev/packages/flutter_displaymode)

References:

• Frame rate is locked to 60FPS on devices with frame rate optimization flutter/flutter#35162
• Frame rate is locked to 60FPS on some android devices  flutter/flutter#160952
• Enable 90hz support for the OnePlus 8 (IN2013)  flutter/flutter#78117

SUGGESTED FIX

In MainActivity (android/app/src/main/kotlin/.../MainActivity.kt), request the highest available refresh rate when the Flutter surface is created:

class MainActivity : FlutterActivity() {
override fun onFlutterSurfaceViewCreated(flutterSurfaceView: FlutterSurfaceView) {
super.onFlutterSurfaceViewCreated(flutterSurfaceView)
window.attributes = window.attributes.also {
it.preferredRefreshRate = 120f
}
}
}

Alternatively, integrate the flutter_displaymode package and call FlutterDisplayMode.setHighRefreshRate() on app start.

STEPS TO REPRODUCE

1. Install Map Marker on a device with a 90Hz+ display (confirmed on Android 16, Motorola, 120Hz panel).
2. Open the app, use "long-press the location button" to switch to movement-based marker orientation.
3. Rotate the device or move while the marker updates its heading.
4. Observe stuttering/juddering rotation, inconsistent with the device's native refresh rate.

Happy to provide the full bug report log if useful for debugging.

[androidseb]

Hello, before I read through this in details, this bug report seems to be mostly AI generated, could you please confirm?

It seems the specific issue you're encountering is the map rotation animation when following the current device's location is visually stuttered? Could you confirm the problem you're encountering is with this animation specifically and not other animations? (e.g. opening the drawer, opening the settings page, etc.).

Thanks.