Ubuntu
gdm3 package

Screen lock broken after release upgrade

Bug #1565178 reported by Tim Lunn
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
Ubuntu GNOME
New
Undecided
Unassigned
gdm3 (Ubuntu)
Fix Released
Medium
Unassigned

Bug Description

After upgrading from 14.04 -16.04 Ubuntu GNOME, the lock screen will be broken with an "Authenticating" message.

This is due to gnome-shell loosing the authentication channel to gdm, after the upgrade. I am not sure that there is anyway to work around this and restore it without rebooting.

Tags: iso-testing

Related branches

lp:ubuntu-release-upgrader
Revision history for this message
Ubuntu QA Website (ubuntuqa) wrote :

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1565178

tags: added: iso-testing
Mathew Hodson (mhodson)
Changed in gdm3 (Ubuntu):
importance: Undecided → Medium
Revision history for this message
Tim Lunn (darkxst) wrote :

I have included a workaround for this on the patch attached to Bug 1565178.

There I have added a gnome-session inhibitor to block the screensaver, on Ubuntu GNOME we will leave this running do if the user exits the installer (rather than press restart button). They will have no screen lock until the next reboot, seems somewhat better than a locked screen to can't be unlocked.

Changed in gdm3 (Ubuntu):
status: New → Triaged
Revision history for this message
Marius Gedminas (mgedmin) wrote :

> I have included a workaround for this on the patch attached to Bug 1565178.

Bad bug number? It refers to this very bug, which has no patches attached.

FWIW I managed to forget that locking the screen triggers this bug and locked myself out in the middle of an upgrade from 15.10 to 16.04. Oops. Screensaver inhibition doesn't prevent the user from hitting the Lock Screen key manually. :/

Revision history for this message
Tim Lunn (darkxst) wrote : Re: [Bug 1565178] Re: Screen lock broken after release upgrade

On 23/04/16 00:29, Marius Gedminas wrote:
>> I have included a workaround for this on the patch attached to Bug
> 1565178.
>
> Bad bug number? It refers to this very bug, which has no patches
> attached.
 bad wording, I left the inhibitor in place to workaround this bug. The
other bug was the screensaver not being inhibited.
>
>
> FWIW I managed to forget that locking the screen triggers this bug and locked myself out in the middle of an upgrade from 15.10 to 16.04. Oops. Screensaver inhibition doesn't prevent the user from hitting the Lock Screen key manually. :/
 and I really don't think it ever should, ideally we would find a way to
maintain the auth channel, but there is a reason fedora force restarts
on upgrades, its a really hard problem ;(
>

Tim Lunn (darkxst)
Changed in gdm3 (Ubuntu):
status: Triaged → Fix Released
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