Lock screen is freezing in eOS 8.

[pasmado]

What Happened?

Sometimes when I lock the system and leave the computer for a long while, lock screen freezes and I cannot type or click the mouse. Only mouse move works. So, I have to enter the command line and restart lightdm and things became normal again.

Steps to Reproduce

1. Lock the system
2. Wait some minutes util the screen turn off
3. Try loggin in again

Expected Behavior

It appears to be an intermittent error.

OS Version

8.x (Circe)

Session Type

Classic Session (X11, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

Lenovo s145.