Frequently I need to lock my screen using Super+L, but when I put my password to unlock, the system presents a black screen for over 10 seconds. After that all things are ok, but this black screen is the worst.

Distributor ID: elementary
Description:    elementary OS 5.0 Juno
Release:    5.0
Codename:   juno
  • Its a very old bug, i really want it to be fixed, i need to change to another lock screen because of this bug.
    – Otávio
    Aug 24, 2020 at 4:16

3 Answers 3


You can't take away the black screen entirely, but increasing the graphics memory will reduce the time the black screen stays on your monitor.


It just happened to me on Odin yesterday. (it used to happen from time to time on Hera). So that bug is still around.


yes indeed, black screen with blinking is still present.

my solution is press ctrl+alt+F1 and write

sudo systemctl restart display-manager


sudo reboot

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