Dell UltraSharp UP3221Q User Manual page 51

Auto Select for
Thunderbolt
(90 W)
Rename Inputs Allows you to rename the input source.
Reset Input
Source
Display
Aspect Ratio
Allows you to set Auto Select for Thunderbolt 
(90 W) to:
• Prompt for Multiple Inputs: Always displays the
"Switch to Thunderbolt Video Input" message
for you to choose whether to switch or not.
• Yes: Always switch to Thunderbolt (90 W) video
input (without asking) when the Thunderbolt™ 3
Active cable is connected.
• No: Never automatically switch to Thunderbolt 
(90 W) video input when the Thunderbolt™ 3 Active
cable is connected.
NOTE: Auto Select for Thunderbolt (90 W) is only
available when Auto Select is turned On.
Reset your monitor input settings to the factory
settings.
Use Display to adjust images.
Adjusts the image ratio to Auto Resize, 17:9, 16:9, or
Pixel-for-Pixel.
Operating the Monitor
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