After resuming from hibernate, I get a blank screen with only mouse cursor visible. Tried to login with virtual terminal and running `top` I see nothing suspectible. Going back to the GUI subsystem I tried to type password (still with blank screen) and press enter. Voila! The desktop appears. Reproducible: Always Steps to Reproduce: 1. Hibernate from a running system 2. Resume Actual Results: On step 2, only mouse cursor is visible, everything else is blank screen Expected Results: On step 2, login dialog appears by login dialog, I mean a dialog to open the locked screen, because the default settings is to lock screen after suspend/hibernate.
Also seen with Opensuse 12.3 and KDE 4.11.4 This only happens if I leave the machine for a long time, (several hours) and it goes into suspend mode by virtue of the settings. Upon return, screen is black, and system appears suspended to ram. Pressing power button wakes the system. However all I see is the opensuse logo splash screen displayed, but no unlock (password) screen appears, and no mouse or keyboard input will accepted by this session. Changing to a console, and logging in as root I can see that the session appears to by fully up and running, and the last log message is systemd-sleep(nnn) System Resumed. Again from the console as root, looking for tasks running under the user logged on at the time of suspend, there is a task called kscreenlocker_g running with a relatively high pid (suggesting it was one of the most recent tasks started by that user). killing this task (kscreenlocker_g) and switching back to console 7 showed the system login screen had popped up, and I was able to log back into the session as normal. Note: If I close the lid (instead of just letting it time out) it always works when I re-open the lid, and the log in screen is shown. This is difficult to test without setting your suspend to ram time to be quite short.
The issue seems to have gone and becomes the old kwin 100% cpu when resuming from hibernate/sleep with desktop effects enabled issue in the latest Kubuntu Saucy update (KDE 4.11.3 Qt 4.8.4 kernel 3.11.0-15-generic 32-bit). Simply turning off desktop effects before hibernate/sleep fixes the issue.
Dear Bug Submitter, This bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? I am setting the status to NEEDSINFO pending your response, please change the Status back to REPORTED when you respond. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This is a reminder that this bug has been stagnant for a long time. Could you help us out and re-test if the bug is valid in the latest version? This bug will be moved back to REPORTED Status for manual review later, which may take a while. If you are able to, please lend us a hand. Thank you for helping us make KDE software even better for everyone!
We no longer use lightDM, having moved to SDDM several years ago. As such, this bug report is no longer applicable. Bugs reports for the new SDDM-based login screen should be filed to one of two places: 1. Visual/UI bugs with the login screen UI itself, or feature requests: plasmashell | Theme - Breeze 2. Bugs with the login/user switching process: https://github.com/sddm/sddm/issues