gnome-shell[3159]: JS ERROR: Exception in callback for signal: activate: Error: Error invoking IBus.set_global_engine_async: Expected function for callback argument callback, got undefined

[El jinete sin cabeza]

$ journalctl -b

[...]

gnome-shell[3159]: JS ERROR: Exception in callback for signal: activate: Error: Error invoking IBus.set_global_engine_async: Expected function for callback argument callback, got undefined
                                             setEngine@resource:///org/gnome/shell/misc/ibusManager.js:212:9
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             activateInputSource@resource:///org/gnome/shell/ui/status/keyboard.js:490:13
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             _emit@resource:///org/gnome/gjs/modules/signals.js:128:27
                                             activate@resource:///org/gnome/shell/ui/status/keyboard.js:65:9
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             _inputSourcesChanged@resource:///org/gnome/shell/ui/status/keyboard.js:620:13
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             reload@resource:///org/gnome/shell/ui/status/keyboard.js:369:9
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             _ibusSetContentType@resource:///org/gnome/shell/ui/status/keyboard.js:691:9
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                             _emit@resource:///org/gnome/gjs/modules/signals.js:128:27
                                             _setContentType@resource:///org/gnome/shell/misc/ibusManager.js:188:9
                                             wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: gnome-shell 3.30.2-1ubuntu1
Uname: Linux 4.20.3-042003-generic x86_64
ApportVersion: 2.20.10-0ubuntu19
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Jan 20 19:36:57 2019
DisplayManager: gdm3
InstallationDate: Installed on 2018-12-02 (49 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to disco on 2018-12-02 (49 days ago)

[Daniel van Vugt (vanvugt)]

Please try uninstalling these extensions and then tell us if the bug still occurs after they are gone:

'<email address hidden>'
'<email address hidden>'
'desktop-icons@csoriano'
'<email address hidden>'
'tracker-search@cewee'

If the bug then no longer occurs, please re-enable extensions one by one in order to find out which one is causing the problem.

[Paul Smith (psmith-gnu)]

I was seeing this same warning. The only overlap of extensions with the list above and my list (I only use 3 extensions) is '<email address hidden>'.

I realized I had installed that extension from source rather than through the extensions website since it needed to be built from source for a while due to prerequisites, and I hadn't updated it. I uninstalled and re-installed it from the Extensions web site. So far I haven't seen this warning come back. I'll continue to check if I see it again.

[Daniel van Vugt (vanvugt)]

The status should remain Incomplete until the original reporter has answered comment #2.

[Giampiero Salvi (giampisalvi)]

Hi,
I believe my problem is related to this bug report. I am running Ubuntu 18.04.2 with GNOME 3.28.2, intel graphics and dual screen. The /var/log/syslog file keeps on expanding out of control. I believe this is happening when the screen is locked. If the screen is locked for a long time, it is impossible to unlock it (it becomes kind of frozen). Eventually, the syslog file fills the whole disk (it grows well beyond 100 GB) and the system does not boot any longer. Also when the screen is locked the system keeps on cycling between turning on and off the monitors.

As far as I can tell from gnome-shell-extension-prefs (I am new to Gnome), I do not have any active extensions.

Here are some examples from the log files:

Mar 11 11:23:42 ctt73 gnome-shell[1726]: Object St.BoxLayout (0x5632e3e0ee50), has been already finalized. Impossible to set any property to it.
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #5 0x7ffd1fb51fa0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7ff05c1b5de0 @ 71)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #6 0x7ffd1fb52060 b self-hosted:916 (0x7ff05c1f12b8 @ 367)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: == Stack trace for context 0x5632e1d1d330 ==
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #0 0x7ffd1fb51140 b resource:///org/gnome/shell/ui/osdWindow.js:207 (0x7ff04c5c7780 @ 273)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #1 0x7ffd1fb511a0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7ff05c1b5de0 @ 71)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #2 0x7ffd1fb51260 b self-hosted:916 (0x7ff05c1f12b8 @ 367)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #3 0x7ffd1fb51350 b resource:///org/gnome/gjs/modules/signals.js:128 (0x7ff05c1d2230 @ 386)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #4 0x5632e20ac1c0 i resource:///org/gnome/shell/ui/layout.js:531 (0x7ff04c5042b8 @ 127)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #5 0x7ffd1fb51fa0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7ff05c1b5de0 @ 71)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #6 0x7ffd1fb52060 b self-hosted:916 (0x7ff05c1f12b8 @ 367)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: == Stack trace for context 0x5632e1d1d330 ==
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #0 0x7ffd1fb51140 b resource:///org/gnome/shell/ui/osdWindow.js:206 (0x7ff04c5c7780 @ 231)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #1 0x7ffd1fb511a0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7ff05c1b5de0 @ 71)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #2 0x7ffd1fb51260 b self-hosted:916 (0x7ff05c1f12b8 @ 367)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #3 0x7ffd1fb51350 b resource:///org/gnome/gjs/modules/signals.js:128 (0x7ff05c1d2230 @ 386)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #4 0x5632e20ac1c0 i resource:///org/gnome/shell/ui/layout.js:531 (0x7ff04c5042b8 @ 127)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #5 0x7ffd1fb51fa0 I resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7ff05c1b5de0 @ 71)
Mar 11 11:23:42 ctt73 org.gnome.Shell.desktop[1726]: #6 0x7ffd1fb52060 b sel...

[Daniel van Vugt (vanvugt)]

^^^
That is bug 1772677. Not this one.

[Daniel van Vugt (vanvugt)]

Possibly related to bug 1812266?

Are people still seeing this bug since bug 1812266 was fixed?

[Daniel van Vugt (vanvugt)]

You can test the proposed bionic fix for bug 1812266 using this:

https://launchpad.net/ubuntu/+source/gnome-shell/3.28.3+git20190124-0ubuntu18.04.1

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]