group.of.nepali.translators team mailing list archive

[Robert Ancell <robert.ancell@xxxxxxxxxxxxx>]

Uploaded to zesty as 1.21.5-0ubuntu1.

** Changed in: lightdm
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1656399

Title:
  Returning to existing session is unreliable and can leave on blank
  screen

Status in Light Display Manager:
  Fix Released
Status in Light Display Manager 1.10 series:
  Fix Committed
Status in Light Display Manager 1.18 series:
  Fix Committed
Status in Light Display Manager 1.20 series:
  Fix Committed
Status in lightdm package in Ubuntu:
  In Progress
Status in lightdm source package in Trusty:
  Triaged
Status in lightdm source package in Xenial:
  Triaged
Status in lightdm source package in Yakkety:
  Triaged

Bug description:
  [Impact]
  Due to a logic bug LightDM returning to an existing session from a greeter can be unreliable. This case is common in systems which use the greeter as a lock screen.

  The bug was introduced in revision 1954 to fix bug 1296276. The race
  condition seems to have been made more likely to the change in
  revision 2437 to fix bug 1637758.

  [Test Case]
  1. Log into a session
  2. Switch to the greeter (e.g. dm-tool switch-to-greeter)
  3. Log in again

  Expected result
  Returned to existing session

  Observed result
  Not always returned, can end up on blank screen. Since this is a race condition this may not occur on some systems.

  [Regression Potential]
  Low, the fix is to correct a logic bug that made LightDM think it hadn't stopped a session correctly.

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