I am seeing the same symptom after login with a black screen and stuck mouse pointer in the middle of screen (well actually at mid point of virtual screen as I have dual screen setup) and similar messages in the logs. For me it is intermittent, maybe one time in 5.
@Dave, you say that you can recover by restarting lightdm, can you explain how to do this? I cannot even get a terminal with ctrl alt F1, though when I click the power button it does power down normally after a few seconds.
I am seeing the same symptom after login with a black screen and stuck mouse pointer in the middle of screen (well actually at mid point of virtual screen as I have dual screen setup) and similar messages in the logs. For me it is intermittent, maybe one time in 5.
@Dave, you say that you can recover by restarting lightdm, can you explain how to do this? I cannot even get a terminal with ctrl alt F1, though when I click the power button it does power down normally after a few seconds.