Cannot unlock screen in KDE
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
lightdm (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
sddm (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
System Info:
Description: Ubuntu 14.04 LTS
Release: 14.04
Hardware: Lenovo THingpand T430 connected to an external Dell montior; using onboard Intel 4000 HD
Configuration: widget-enabled screen locker, desktop effects (OpenGL 3.1).
Expected:
When screen locks (either through time-out or user request), clicking on the cashew in the top right should permit unlock.
What happens:
Nothing - it is not possible to unlock the screen.
Viable workaround:
None. It might be that using "xrandr" for effects doesn't cause the issue, but I haven't had time to fully test.
The only option is to force a shutdown and then start, losing all data in open applications.
Reboot does not seem to work correctly when the screen can't be unlocked, hangs with black screen when it should show log-in screen.
I am more than happy to run any required tests or pull required logs.
Done a bit more testing and it appears to be solely the presence of the external monitor that renders the lock screen unlockable.
The simple lock screen works OK with an external monitor, it's only the widget enabled lock screen that is affrected.