[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Robert Ancell]

** Changed in: lightdm/1.18
 Assignee: Robert Ancell (robert-ancell) => (unassigned)

** Changed in: lightdm/1.10
 Assignee: Robert Ancell (robert-ancell) => (unassigned)

** Changed in: lightdm/1.20
 Assignee: Robert Ancell (robert-ancell) => (unassigned)

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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:
  Fix Released
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.

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[AJ Fite]

The new version has fixed the issue for me!

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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:
  Fix Released
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Launchpad Bug Tracker]

This bug was fixed in the package lightdm - 1.21.5-0ubuntu1

---
lightdm (1.21.5-0ubuntu1) zesty; urgency=medium

  * New upstream release:
- Fix logic that checked if a session was being stopped.
  This fixes a race condition that could cause logging into an existing
  session from a greeter to not return to that session. (LP: #1656399)

 -- Robert Ancell   Wed, 22 Feb 2017
12:38:50 +1300

** Changed in: lightdm (Ubuntu)
   Status: In Progress => Fix Released

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You received this bug notification because you are a member of Ubuntu
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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:
  Fix Released
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[PeppeKorg]

Installing 1.21.5-0ubuntu1 has solved the problem coming out from lock
screen

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[flocculant]

@ Robert - grabbed from -proposed.

Locking from desktop appears to work as expected.

Unlocking from suspend - I get hiccups if I'm a bit quick entering
password (bug 1666803)

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Robert Ancell]

The change fixes the issue for me, though of course it may not be the
only issue affecting screen locking with light-locker (as per the
original bug description). If you continue to have problems please
comment here an open a new bug and we'll tackle further issues there.
Thanks for all the great feedback in this bug!

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You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Robert Ancell]

Uploaded to zesty as 1.21.5-0ubuntu1.

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

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You received this bug notification because you are a member of Ubuntu
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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Simon Quigley]

Robert, any chance we can get this fix in Zesty Archive in
debian/patches? I can help with packaging if needed (if you aren't
working on it already).

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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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/lightdm/+bug/1656399/+subscriptions

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[Touch-packages] [Bug 1656399] Re: Returning to existing session is unreliable and can leave on blank screen

[Robert Ancell]

** Description changed:

- Unable to unlock Xubuntu XFCE session after suspend. I'm presented with
- unlock screen, and entering credentials will redirect to a black screen
- with "This session is locked", and "you will be redirected to unlock
- screen".
+ [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.
+ 
+ [Regression Potential]
+ Low, the fix is to correct a logic bug that made LightDM think it hadn't 
stopped a session correctly.

** Changed in: lightdm/1.20
   Status: New => Fix Committed

** Changed in: lightdm/1.18
   Importance: Undecided => High

** Changed in: lightdm/1.18
   Status: New => Fix Committed

** Changed in: lightdm/1.10
   Importance: Undecided => High

** Changed in: lightdm/1.10
   Status: New => Fix Committed

** Description changed:

  [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.
+ 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.

** Changed in: lightdm/1.20
   Importance: Undecided => High

** Changed in: lightdm/1.10
Milestone: None => 1.10.7

** Changed in: lightdm/1.18
Milestone: None => 1.18.4

** Changed in: lightdm/1.20
Milestone: None => 1.20.1

** Changed in: lightdm
   Importance: Undecided => High

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

** Changed in: lightdm
Milestone: None => 1.21.5

** No longer affects: light-locker (Ubuntu)

** No longer affects: light-locker (Ubuntu Trusty)

** No longer affects: light-locker (Ubuntu Yakkety)

** No longer affects: light-locker (Ubuntu Xenial)

** Changed in: lightdm
 Assignee: (unassigned) => Robert Ancell (robert-ancell)

** Changed in: lightdm/1.10
 Assignee: (unassigned) => Robert Ancell (robert-ancell)

** Changed in: lightdm/1.18
 Assignee: (unassigned) => Robert Ancell (robert-ancell)

** Changed in: lightdm/1.20
 Assignee: (unassigned) => Robert Ancell (robert-ancell)

** Changed in: lightdm (Ubuntu Trusty)
   Status: New => Triaged

** Changed in: lightdm (Ubuntu Xenial)
   Status: New => Triaged

** Changed in: lightdm (Ubuntu Yakkety)
   Status: New => Triaged

** Changed in: lightdm (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: lightdm (Ubuntu Yakkety)
   Importance: Undecided => Medium

** Changed in: lightdm (Ubuntu Xenial)
   Importance: Undecided => Medium

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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 Committed
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