Are you using GDM3 as your login manager?
Have you got GNOME-Shell also installed?
This thread maybe your issue Lockscreen not working after update to 21.10 - #22 by RupertEverton
Related Topics
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Screen lock doesn't work after upgrade to 21.10 | 2 | 782 | October 20, 2021 | |
| Lock screen no longer works after 22.04 upgrade | 14 | 6847 | December 24, 2022 | |
| Lockscreen not working after update to 21.10 | 40 | 7446 | May 30, 2022 | |
| Screen blank settings not working | 5 | 2704 | May 26, 2022 | |
|
23.04 - Screen Lock
|
9 | 1188 | April 19, 2023 |