I got this problem as well. When the screen lock starts (due to time-out or manually pushing the lock screen button), I will get a very fast blinking cursor on a black screen.
I'm using XFCE with Lightdm.
I got this problem as well. When the screen lock starts (due to time-out or manually pushing the lock screen button), I will get a very fast blinking cursor on a black screen.
I'm using XFCE with Lightdm.