Article Number: 000141556
This article provides the information on "Windows logs you off when either disconnecting or connecting an external display/projector via High Definition Multimedia Interface (HDMI)".
Dell Inspiron 7548 users have reported that systems with with Intel 5500 graphics, (other systems may be affected, but as yet none have been reported to Dell.) when either disconnecting or connecting an external display/projector via High Definition Multimedia Interface (HDMI), switching between clone and extended display mode when using HDMI or making resolution adjustments with an HDMI display connected to the system, the system will log out of Windows.
The Elantech Touchpad Driver (ETD) Control Center has been identified as one potential cause of this issue.
Disable the ETDCC application in Windows startup:
Alternately, you can uninstall the ETD application:
Similar applications may have this effect, use the same troubleshooting process to identify and eliminate application conflicts.
21 Feb 2021