Symantec Endpoint Encryption Full Disk 8.2.1 - Dell Latitude E6440 External keyboard slow and lags at Pre-Boot Authentication Screen while docked in Dell docking station. Works normally when not docked using built in laptop keyboard.
No errors.
Use of USB 3.0 port.
1. Try plugging the keyboard into a USB 2.0 port if available
2. Disable USB 3.0 support in the BIOS
Applies To
SEE Full Disk 8.2.1 MP11, Dell Latitude E6440 docking in Dell E-Port or Dell E-Port Plus docking station.