*** This bug is a duplicate of bug 1280300 *** https://bugs.launchpad.net/bugs/1280300
Yes me too, Ubuntu 15.10 Unity, Toshiba Chromebook 2. I've the below as I thought it was an issue with the screensaver after reading other sites. No luck: gsettings set org.gnome.desktop.screensaver ubuntu-lock-on-suspend 'true' sudo sed -i "s/NoDisplay=true/NoDisplay=false/g" /etc/xdg/autostart/*.desktop -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/830348 Title: desktop contents briefly visible on resume from suspend before lock dialog Status in Compiz: New Status in unity-2d: Confirmed Status in gnome-screensaver package in Ubuntu: Incomplete Status in unity-2d package in Ubuntu: Confirmed Bug description: This seems like a recent regression on Oneiric (or perhaps I haven't noticed it before): On resume from suspend, the contents of the desktop are often briefly visible before being hidden behind the lock screen. This is a security problem if there happens to be sensitive information on the screen. =====Analysis from mdeslaur===== This is likely what happens: 1- Something grabs mouse: ie: virtual machine window, or GTK menu in an application or an indicator 2- Screensaver attempts to start, but cannot get exclusive lock on mouse 3- DPMS turns monitor black 4- User moves mouse, which turns the screen back on 5- Mouse movement causes mouse to get ungrabbed by vm window or gtk menu 6- Screensaver can now grab mouse, and starts This is all related to the fact that X does not have an API that will let the screensaver tell an application to release mouse and keyboard grabs. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/830348/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp