Dell S2240T User Manual page 38

LCD
Conditioning
Factory Reset
Personalize
NOTE: This monitor has a built-in feature to automatically calibrate the brightness
to compensate for LED aging.
38
| Operating the Monitor
Helps reduce minor cases of image retention. Depending on the
degree of image retention, the program may take some time to run.
You can enable this feature by selecting Enable.
Reset all OSD settings to the factory preset values.
Users can choose a feature from Preset Modes, Brightness/Contrast,
Auto Adjust, Input Source, or Aspect Ratio and set it as a shortcut key.