*** This bug is a duplicate of bug 1734044 ***
https://bugs.launchpad.net/bugs/1734044
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1734044, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.
** This bug has been marked a duplicate of bug 1734044
gnome-shell crashes when monitor turned off or switch kvm
[meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned
int) number < g_list_length (manager->logical_monitors)' failed]
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https://bugs.launchpad.net/bugs/1782573
Title:
Remote X11vnc session unusable due to crash in gnome-shell when
disconnecting HDMI monitor under Ubuntu Desktop 18.04 LTS
Status in gnome-shell package in Ubuntu:
New
Bug description:
Expect to happen: I can use X11VNC when the monitor is disconnected.
What happens instead: remote X11vnc session unusable due to crash in
gnome-shell when disconnecting HDMI monitor under Ubuntu Desktop 18.04
LTS
I'm using a stable system that works fine when the monitor is
connected; also X11VNC works fine.
But I want to access the GUI remotely via X11VNC when the HDMI monitor
is disconnected then the system is not usable (lots of gnome-shell
errors in syslog) and sometimes the gnome-shell will also segfault
(the segfault is not in this bugreport). The X11 remote viewer is full
of clutter (see screencast).
Please see below for the syslog entries when disconnecting the monitor
with no X11VNC active, and the syslog entries when the monitor is
disconnected and starting X11VNC.
Gist:
https://gist.github.com/pantaluna/c4f69f367611c596d10919f3c80e1a0d
X. VIDEO: X11VNC monitor disconnected.
https://www.dropbox.com/s/a8jjnw14uhtibzk/ubuntu1804-x11vnc-disconnected-monitor-fatal.mp4?dl=0
X. System
https://gist.github.com/pantaluna/c4f69f367611c596d10919f3c80e1a0d
- Ubuntu Desktop 18.04 LTS (latest updates until Jul19,2018 14:00h).
- Intel HD Graphics 530
$ lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
$ root@s3black:~# apt-cache policy gnome-shell
gnome-shell:
Installed: 3.28.2-0ubuntu0.18.04.1
Candidate: 3.28.2-0ubuntu0.18.04.1
Version table:
*** 3.28.2-0ubuntu0.18.04.1 500
500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64
Packages
100 /var/lib/dpkg/status
3.28.1-0ubuntu2 500
500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
$ lspci -nnk | grep -i -A3 "vga" | grep 'in use'
Kernel driver in use: i915
$ lshw -C video
*-display
description: VGA compatible controller
product: HD Graphics 530
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:127 memory:de000000-deffffff memory:c0000000-cfffffff
ioport:f000(size=64) memory:c0000-dffff
X. GIST: Syslog entries when disconnecting the HDMI cable.
egrep --ignore-case "gnome|hdmi" /var/log/syslog
Jul 19 14:37:53 s3black kernel: [ 943.153341] i915 0000:00:02.0:
HDMI-A-1: EDID is invalid:
Jul 19 14:37:53 s3black kernel: [ 943.153347] [00] BAD 00 ff ff ff ff
ff ff 00 ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153349] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153351] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153353] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153354] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153356] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153358] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:53 s3black kernel: [ 943.153360] [00] BAD ff ff ff ff ff
ff ff ff ff ff ff ff ff ff ff ff
Jul 19 14:37:55 s3black gnome-shell[2017]: JS WARNING:
[resource:///org/gnome/shell/ui/workspaceThumbnail.js 903]: reference to
undefined property "_switchWorkspaceNotifyId"
Jul 19 14:37:56 s3black gnome-shell[2017]:
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int)
number < g_list_length (manager->logical_monitors)' failed
Jul 19 14:37:56 s3black gnome-shell[2017]:
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL'
failed
Jul 19 14:37:56 s3black gnome-shell[2017]: JS ERROR: TypeError:
this._monitor is
undefined#012DockedDash<._resetPosition@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:1089:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012DockedDash<._init@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:416:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_Base.prototype._construct@resource:///org/gnome/gjs/modules/_legacy.js:18:5#012Class.prototype._construct/newClass@resource:///org/gnome/gjs/modules/_legacy.js:114:32#012DockManager<._createDocks@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:1717:20#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012DockManager<._toggle@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:1663:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe2d6c30 StButton.app-well-app ("33")] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fbe39c40 StWidget:last-child first-child ("33")]
which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe2d6c30 StButton.app-well-app ("33")] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fbe39c40 StWidget:last-child first-child ("33")]
which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fd5fb440
StWidget.app-well-app-running-dot:first-child] which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe2d6c30 StButton.app-well-app ("33")] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fbe39c40 StWidget:last-child first-child ("33")]
which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe522d50 StBin.overview-icon] which is not in the
stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe2d6c30 StButton.app-well-app ("33")] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fbe39c40 StWidget:last-child first-child ("33")]
which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe522d50 StBin.overview-icon] which is not in the
stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe520050 ShellGenericContainer:last-child
first-child] which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe2d6c30 StButton.app-well-app ("33")] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fbe39c40 StWidget:last-child first-child ("33")]
which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe522d50 StBin.overview-icon] which is not in the
stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe520050 ShellGenericContainer:last-child
first-child] which is not in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: st_widget_get_theme_node
called on the widget [0x5650fe51cf50 StBin:last-child first-child] which is not
in the stage.
Jul 19 14:37:56 s3black gnome-shell[2017]: clutter-actor.c:10049: Actor
'dashtodockDashScrollview' tried to allocate a size of 66.00 x -64.00
Jul 19 14:37:56 s3black gnome-shell[2017]: clutter-actor.c:10049: Actor
'dashtodockDashScrollview' tried to allocate a size of 66.00 x -64.00
Jul 19 14:37:56 s3black gnome-shell[2017]:
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int)
number < g_list_length (manager->logical_monitors)' failed
Jul 19 14:37:56 s3black gnome-shell[2017]:
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL'
failed
Jul 19 14:37:56 s3black gnome-shell[2017]: JS ERROR: TypeError:
this._monitor is
undefined#012DockedDash<._resetPosition@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:1089:17#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
Jul 19 14:37:56 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:37:56 s3black gnome-shell[2017]: message repeated 6 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:37:56 s3black gnome-shell[2017]: JS ERROR: TypeError:
this._monitor is
undefined#012DockedDash<._updateBarrier@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:963:1#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012DockedDash<._initialize@/usr/share/gnome-shell/extensions/ubuntu-d...@ubuntu.com/docking.js:444:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
Jul 19 14:37:56 s3black gnome-shell[2017]: clutter-actor.c:10049: Actor
'dashtodockDashScrollview' tried to allocate a size of 66.00 x -64.00
Jul 19 14:37:56 s3black gnome-shell[2017]: setup_framebuffers: assertion
'height > 0' failed
Jul 19 14:37:56 s3black org.gnome.Shell.desktop[2017]: Window manager
warning: Overwriting existing binding of keysym ff09 with keysym ff09 (keycode
17).
Jul 19 14:37:56 s3black org.gnome.Shell.desktop[2017]: Window manager
warning: Overwriting existing binding of keysym ff09 with keysym ff09 (keycode
17).
Jul 19 14:37:56 s3black gnome-shell[2017]: clutter-actor.c:10049: Actor
'dashtodockDashScrollview' tried to allocate a size of 66.00 x -64.00
Jul 19 14:37:56 s3black gnome-shell[2017]: setup_framebuffers: assertion
'height > 0' failed
Jul 19 14:37:56 s3black gnome-shell[2017]: message repeated 3 times: [
setup_framebuffers: assertion 'height > 0' failed]
X. GIST: Syslog entries when opening a remote X11VNC session and doing some
GUI interactions with the mouse (the mouse clicks on menu's do not work
anymore).
https://gist.github.com/pantaluna/c4f69f367611c596d10919f3c80e1a0d
egrep --ignore-case "gnome|hdmi" /var/log/syslog
Jul 19 14:44:31 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:33 s3black gnome-shell[2017]: message repeated 335 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:33 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:34 s3black gnome-shell[2017]: message repeated 167 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:35 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:35 s3black gnome-shell[2017]: message repeated 55 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:36 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:36 s3black gnome-shell[2017]: message repeated 83 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:36 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:39 s3black gnome-shell[2017]: message repeated 244 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:39 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:40 s3black gnome-shell[2017]: message repeated 111 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:41 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:43 s3black gnome-shell[2017]: message repeated 272 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:44 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:48 s3black gnome-shell[2017]: message repeated 321 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:49 s3black gnome-shell[2017]:
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed
Jul 19 14:44:52 s3black gnome-shell[2017]: message repeated 580 times: [
meta_window_is_on_primary_monitor: assertion 'window->monitor' failed]
Jul 19 14:44:53 s3black gnome-shell[2017]:
meta_screen_get_monitor_geometry: assertion 'monitor >= 0 && monitor <
n_logical_monitors' failed
Jul 19 14:44:53 s3black gnome-shell[2017]:
meta_screen_get_monitor_geometry: assertion 'monitor >= 0 && monitor <
n_logical_monitors' failed
Jul 19 14:44:53 s3black gnome-shell[2017]: JS ERROR: TypeError: monitor
is
null#012_reposition@resource:///org/gnome/shell/ui/boxpointer.js:508:13#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012setPosition@resource:///org/gnome/shell/ui/boxpointer.js:430:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012open@resource:///org/gnome/shell/ui/popupMenu.js:866:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012toggle@resource:///org/gnome/shell/ui/popupMenu.js:746:13#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_onEvent@resource:///org/gnome/shell/ui/panelMenu.js:138:13#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
Jul 19 14:44:53 s3black gnome-shell[2017]:
meta_screen_get_monitor_geometry: assertion 'monitor >= 0 && monitor <
n_logical_monitors' failed
Jul 19 14:44:55 s3black gnome-shell[2017]:
meta_monitor_manager_get_logical_monitor_from_number: assertion '(unsigned int)
number < g_list_length (manager->logical_monitors)' failed
Jul 19 14:44:55 s3black gnome-shell[2017]:
meta_workspace_get_work_area_for_monitor: assertion 'logical_monitor != NULL'
failed
Jul 19 14:44:55 s3black gnome-shell[2017]: clutter-actor.c:10049: Actor
'dashtodockDashScrollview' tried to allocate a size of 66.00 x -64.00
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