Symptoms
Pressing the monitor’s power button to turn on both laptop and monitor that are in off state, only the laptop turns on.
Affected Platforms:
Latitude 7420
Examples of Monitors Supporting DPBS Feature:
C2422HEC3422WEC2722DEU2421EU2422HEU3223QZU3421WEU3821DWU4021QWP3421W
Cause
No cause information is available.
Resolution
Updating to BIOS version 1.29.0 or later on the computer resolves the issue. To download and install the BIOS, reference Dell BIOS and UEFI Updates.
