If your OnePlus 15 keeps dimming the screen on its own, it can be distracting and frustrating. The brightness may suddenly drop while watching videos, browsing, or even reading messages. In most cases, this behavior is caused by display settings designed to save power or protect your eyes, not a hardware defect.
Why Your OnePlus 15 Keeps Dimming the Screen
- Auto brightness is constantly adjusting based on lighting conditions.
- Adaptive brightness data has become inaccurate over time.
- Battery saving features are limiting screen brightness.
- Extra dim or comfort display features are enabled.
- Software glitches after an update.
1. Turn Off Auto Brightness
Auto brightness continuously adjusts your screen based on ambient light. If the sensor misreads your environment, the screen may dim even when it should not.
Open Settings, and then tap Display.
Tap Brightness, and then turn off Auto brightness.
Manually adjust the brightness slider to a comfortable level and monitor if the issue stops.
2. Reset Adaptive Brightness Data
Over time, adaptive brightness can learn incorrect patterns. Resetting it allows your OnePlus 15 to relearn proper brightness behavior.
Open Settings, and then tap Apps.
Tap Device health services, and then select Storage.
Clear storage to reset brightness learning data.
3. Disable Battery Saver Mode
Battery saver reduces screen brightness to extend battery life. When it turns on automatically, it can cause sudden dimming.
Open Settings, and then tap Battery.
Tap Battery saver, and then turn it off.
Check if brightness remains stable during normal use.
4. Turn Off Extra Dim and Eye Comfort Features
Extra Dim and eye comfort features lower brightness intentionally. These are useful at night but problematic if enabled unintentionally.
Open Settings, and then tap Display.
Tap Eye Comfort or Extra Dim, and then turn the feature off.
Return to your previous app and check if brightness stays consistent.
5. Restart Your Phone
A restart refreshes display services and clears temporary glitches. This step often fixes random dimming without changing any settings.
Swipe down from the top of the screen to open Quick Settings.
Tap the Power icon, and then tap Restart.
Wait for the device to boot up and test the display again.
6. Update Your Phone Software
Software updates often include fixes for display and brightness issues. Running outdated software can cause unexpected behavior.
Open Settings, and then tap About device.
Tap Software update, and then install any available updates.
Restart the phone after updating to apply changes fully.
Random screen dimming on the OnePlus 15 is usually tied to smart display features working too aggressively. Once you disable or reset the settings responsible, your screen brightness should remain stable and predictable again.
FAQs
Why does my OnePlus 15 dim the screen while watching videos?
This often happens due to auto brightness or eye comfort features reacting to darker scenes. Turning these features off usually resolves the issue.
Can battery health affect screen brightness?
Yes. When battery levels drop or battery saver activates, the phone may reduce brightness automatically to conserve power.
Is random dimming a hardware problem on the OnePlus 15?
In most cases, no. The issue is almost always software or settings related and can be fixed without repairs.
