Shutting down from the screen locker doesn't work for me. It appears to get stuck asking the session for confirmation - I heard a notification sound that I assume was a "Do you want to save this doc?" dialog box inside the session. When the countdown expires it will simply go to negative values then, i.e. "Shutdown in -7 seconds". Reproducible: Always
Apologies if this is the wrong assignee - please relay it if you know who is clueful.
I can confirm this bug, it happens sometimes that countdown goes to negative value if done from the screenlocker
Test project /home/sho/devel/build/kde/workspace/plasma-workspace/ksmserver/screenlocker Start 1: ksmserver-authenticatorTest 1/4 Test #1: ksmserver-authenticatorTest ...... Passed 2.86 sec Start 2: ksmserver-logindTest 2/4 Test #2: ksmserver-logindTest ............. Passed 0.22 sec Start 3: ksmserver-ksldTest 3/4 Test #3: ksmserver-ksldTest ............... Passed 2.50 sec Start 4: ksmserver-lockWindowTest 4/4 Test #4: ksmserver-lockWindowTest ......... Passed 3.79 sec 100% tests passed, 0 tests failed out of 4 Total Test time (real) = 9.38 sec
Sorry re comment #3, wrong ticket :(.
I'm not the correct assignee for this and I don't know who it is, but I have explained to quite a lot of developers that shutting down from the screen locker is *impossible* to work. This just needs to be removed and should never have been added. I do not know who added it and why and I don't know where the code is. Some of that code got merged in without a proper review of the screenlocker maintainers (which I consider myself to be part of).
Git commit ab190c149b67a8441fd901f8d554ef8fa4f56bdb by Martin Gräßlin. Committed on 14/10/2014 at 05:32. Pushed by graesslin into branch 'Plasma/5.1'. Remove shutdown option from screen locker Logging out from the locked screen is impossible. Logging out means interaction with the session due to the session manager. The session manager asks all applications to quit and applications are allowed to ask for example saving changes. The session manager stopps the logout in this case and asks the window manager to focus this window and the session manager will only continue the logout once the application resolved the situation. At any time in this process the user is still able to abort the logout! Switching to the application which needs interaction is impossible, though as the screen is still locked. The result is a seemingly frozen system as the logout cannot continue and there is no indication what is going on. Of course the lock screen cannot unlock the session for the logout as that would circumvent the security. If the lock screen would unlock one would just have to click the button and abort the logout really fast to have the system unlocked. So this is clearly not an option. The result is: we cannot implement this functionality in a working and secure manner, so it's better to remove it. REVIEW: 120577 FIXED-IN: 5.1.1 M +0 -24 ksmserver/screenlocker/greeter/greeterapp.cpp M +0 -1 ksmserver/screenlocker/greeter/greeterapp.h M +0 -34 lookandfeel/contents/lockscreen/LockScreen.qml http://commits.kde.org/plasma-workspace/ab190c149b67a8441fd901f8d554ef8fa4f56bdb