Dell U4021QW User Manual page 35

Switch to lower / higher primary resolution
1. Press the joystick button to launch the OSD main menu.
2. Move the joystick to select input source.
3. Move the joystick up or down to select HDMI 1/HDMI 2, pess and hold the
joystick 8 Sec, the following message will appear:
4. Select Yes to switch from HDMI 2.0 (default) to HDMI 1.4 (or select No to cancel
this operation).
5. Repeat steps 3 and 4 again to switch from HDMI 1.4 to HDMI 2.0.
UltraSharp 40 Monitor
Brightness/Contrast
Thunderbolt (90W)
Input Source
Color DP
Display HDMI 1
HDMI 2
PIP/PBP
USB Auto Select
Auto Select for Thunderbolt
Audio
Menu Rename Inputs
Personalize
Reset Input Source
Others
Switch to lower primary resolution for HDMI?
Switch to higher primary resolution for HDMI?
On
Prompt for Multiple Inputs
Thunderbolt (90W)
Yes
No
Yes
No
Setting up the monitor
Exit
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