Screen lock button missing when using LightDM

This bug was fixed in the package gnome-shell - 3.24.2-0ubuntu3

---------------
gnome-shell (3.24.2-0ubuntu3) artful; urgency=medium

  * Extend ubuntu-lightdm-user-switching.patch to allow
    locking screen using LightDM (LP: #1684205)

 -- Jeremy Bicha <email address hidden> Sun, 14 May 2017 21:42:39 -0400

Hello Jeremy, or anyone else affected,

Accepted gnome-shell into zesty-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gnome-shell/3.24.2-0ubuntu0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Hello Jeremy, or anyone else affected,

Accepted gnome-shell into yakkety-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gnome-shell/3.20.4-0ubuntu3 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

Hello Jeremy, or anyone else affected,

Accepted gnome-shell into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/gnome-shell/3.18.5-0ubuntu0.3 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed.Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

From Ubuntu (Unity) 16.04, 16.10 and 17.04, I enabled -proposed updated and installed gnome-shell. I logged out of Unity and logged into GNOME. I verified that the Lock button is present and works now. Ubuntu (Unity) uses LightDM and I did not switch to a different display manager.

gnome-shell 3.18.5-0ubuntu0.3 (16.04)
gnome-shell 3.20.4-0ubuntu3 (16.10)
gnome-shell 3.24.2-0ubuntu0.1 (17.04)

This bug was fixed in the package gnome-shell - 3.18.5-0ubuntu0.3

---------------
gnome-shell (3.18.5-0ubuntu0.3) xenial; urgency=medium

  * Extend ubuntu-lightdm-user-switching.patch to allow
    locking screen using LightDM (LP: #1684205)
  * Allow lightdm to be an alternate recommends for gdm3 to avoid debconf
    question if a display manager is already installed (LP: #1690938)
  * Depend on caribou, needed for the Screen Keyboard (LP: #1589240)
  * Recommend chrome-gnome-shell, needed for Firefox, Chromium, Chrome and
    Opera to work with https://extensions.gnome.org/ (LP: #1672175)

 -- Jeremy Bicha <email address hidden> Sat, 13 May 2017 17:46:47 -0400

The verification of the Stable Release Update for gnome-shell has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package gnome-shell - 3.20.4-0ubuntu3

---------------
gnome-shell (3.20.4-0ubuntu3) yakkety; urgency=medium

  * Extend ubuntu-lightdm-user-switching.patch to allow
    locking screen using LightDM (LP: #1684205)
  * Allow lightdm to be an alternate recommends for gdm3 to avoid debconf
    question if a display manager is already installed (LP: #1690938)
  * Depend on caribou, needed for the Screen Keyboard (LP: #1589240)
  * Recommend chrome-gnome-shell, needed for Firefox, Chromium, Chrome and
    Opera to work with https://extensions.gnome.org/ (LP: #1672175)

 -- Jeremy Bicha <email address hidden> Mon, 15 May 2017 18:38:18 -0400

This bug was fixed in the package gnome-shell - 3.24.2-0ubuntu0.1

---------------
gnome-shell (3.24.2-0ubuntu0.1) zesty; urgency=medium

  * New upstream release (LP: #1690182)
  * Extend ubuntu-lightdm-user-switching.patch to allow
    locking screen using LightDM (LP: #1684205)
  * Allow lightdm to be an alternate recommends for gdm3 to avoid debconf
    question if a display manager is already installed (LP: #1690938)
  * Depend on caribou, needed for the Screen Keyboard (LP: #1589240)

 -- Jeremy Bicha <email address hidden> Mon, 15 May 2017 18:36:22 -0400