Okay, new bug filed: bug #1416897 ( https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1416897 ).
That report includes a more in-depth description. There is also a 1-minute video of the bug in action ( https://launchpadlibrarian.net/196338738/lockscreen_bug_no_audio_20150201.webm ). It gives a synced, side-by-side comparison of what the user sees (cameraphone) versus what the OS thinks is being displayed (SimpleScreenRecorder). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1375271 Title: desktop or other past screen contents visible before lockscreen on resume Status in GNOME Screensaver: Invalid Status in Unity: Fix Committed Status in Unity 7.2 series: In Progress Status in unity package in Ubuntu: Fix Released Status in unity source package in Trusty: Fix Committed Bug description: [Impact] On resume from suspend, screen contents are displayed for a brief time (perhaps 0.5 to 1 sec) before the lock dialog appears. These screen contents are not always the desktop or open application beneath the lock screen. On at least one occasion, the screen showed content from a full-screen video that had been playing in Firefox some time before the computer had been suspended: neither the video nor its underlying tab were open anymore, so the image(s) was likely part of a buffer somewhere. (Needless to say, if the wrong full-screen video had been watched, depending on the setting, this could be a quite serious issue for some users). [Test Case] Suspend and resume the computer (closing the lid or using the session indicator). Since this problem involves a race condition, it is not reliably reproducable at will. [Regression Potential] This fix unmaps windows when a suspend or shutdown event occurs: it is possible that the window(s) do not get remapped when a wake event occurs, or the wake even does not get propagated. This does not appear to occur in practice. [Other Info] The Ubuntu 14.04 LTS SRU was cherry-picked from upstream Unity where it has been released in the Ubuntu "Vivid Vervet" development release for a couple of months with no apparent regressions. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-screensaver/+bug/1375271/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
