touch-packages team mailing list archive

["franglais.125" <1375271@xxxxxxxxxxxxxxxxxx>]

Hi Adam:
I have been using 7.2.4+14.04.20141217-0ubuntu1 for a while now and I'm unable to reproduce the problem you mention in comment #8. However, I'll pay attention and report back if I find any problems!

Also, the updated from -proposed seems to have fixed this bug. The
behaviour when suspending/resuming is as smooth as ever for me.

Btw, just in case, I Sandybridge integrated graphics on my laptop.

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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.

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