Dell S199WFP User Manual page 16

Language Select to have the OSD display in one of five languages (English, French, Spanish, German, or Japanese).
Audio (optional) You can select to have the audio on or off when the monitor is in power saving mode.
Yes — enables audio
No — disables audio (default)
Factory Reset Resets the OSD menu options to the factory preset values.
Exit — Select to exit out of Reset to Factory Settings menu without resetting any OSD options.
Position settings only — Change the settings for Image Position back to original factory settings.
Color settings only — Change the Red, Green, and Blue settings back to their original factory settings and set the default
setting for Normal Preset.
All settings — Change all the user-adjustable settings including color, position, brightness, contrast, and OSD hold time to
the factory defaults. The language of the OSD does not change.
IR (Image Retention) — The feature helps reduce minor cases of image retention.
DDC/CI (Display Data Channel/Command Interface) — allows you to adjust the monitor parameters (brightness, color,
balance, etc.) through software applications on your computer.
Select Disable to disable this feature.
For best user experience and optimum performance of your monitor, keep this feature enabled.
NOTE: The change only affects the OSD. It has no effect on any software running on the computer.
NOTE: When the Dell Soundbar is not properly connected to the monitor, the audio menu is not available.