Lenovo W530 in Optimus mode, second monitor attached to display port.
Usually only happens when both monitors are active, and when a VirtualBox VM is on the screen. Today, I was on a workspace that didn't include any VMs. First occurrence after locking I got a blank login on one monitor but the second allowed me to enter password; a few minutes later a second lock screen resulted in both monitors refusing to accept a password.
I have the updated package installed:
paul@ paul-ThinkPad- W530:~$ sudo apt-show-versions unity amd64/trusty- updates 7.2.3+14. 04.20140826- 0ubuntu1 uptodate
unity:
But I still got hit with this bug today.
Lenovo W530 in Optimus mode, second monitor attached to display port.
Usually only happens when both monitors are active, and when a VirtualBox VM is on the screen. Today, I was on a workspace that didn't include any VMs. First occurrence after locking I got a blank login on one monitor but the second allowed me to enter password; a few minutes later a second lock screen resulted in both monitors refusing to accept a password.
unity --replace did restore the ability to login.