Android brightness slider not working android#

Then, it automatically makes the adjustments based on the patterns it identified. This AI-powered feature learns what brightness levels you prefer over time. It is worth mentioning that you need to actually train the Adaptive Brightness feature on Samsung devices. If automatic brightness or Adaptive Brightness (Samsung) is enabled, then your screen will automatically dim or brighten depending on ambient lighting conditions. Disable Automatic Brightness Settingsīy that, we mean Automatic Brightness, Adaptive Brightness, Power Saving Mode, Blue Light, and Night Light. Check if the brightness level still changes on its own. Go to Settings → Display → Smart Stay and disable this feature. Smart Stay may sometimes mistakenly detect that your eyes are moving and change the brightness level. The Smart Stay feature prevents the display from dimming or turning off as long as the front camera detects you’re looking at the screen. Stop Apps from Changing the Brightness Level Disable Smart Stay (Samsung)

Android brightness slider not working android#

So, if the brightness level goes up only when you’re displaying a barcode or QR code for scanning, there’s nothing wrong with your Android device. For example, the API often increases the screen brightness level to the maximum to make barcode and QR code reading easier. They usually do that via a special API that you accept when installing the app. To override your Android brightness settings, apps need permission to modify the existing system settings. Why Does the Brightness Level Change by Itself on Android? Granted, such an unexpected app behavior feels really invasive.

Perhaps the most frustrating part is that sometimes you can’t even use the slider to manually adjust the brightness level.