Public bug reported:
on my pc there are multiple keyboard layouts configured.(EN/JA/DE)
When using the keyboard shortcut to switch the layout (Super+Space) in some
situations (criteria not entirely clear) the whole UI freezes up and becomes
unresponsive. The only workaround is a hard poweroff and reboot of the system
which is rather convenient if this happens multiple times during a work day.
When switching to another terminal (Alt+F2 etc) I cam see
`/usr/lib/gdm3/gdm-x-session` having a high CPU load.
In the attached syslog file, there are repeated entries about
1) all input devices being removed
2) systemd-logind being paused
```
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "21"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event2 - Power
Button: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "24"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event4 - Video
Bus: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "25"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event1 - Sleep
Button: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "26"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event5 -
Microsoft Microsoft® Nano Transceiver v2.1: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "27"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event6 -
Microsoft Microsoft® Nano Transceiver v2.1 Mouse: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "28"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "29"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "30"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event9 -
Microsoft Microsoft® Nano Transceiver v2.1 System Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "31"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event3 - AT
Translated Set 2 keyboard: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "32"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event10 -
SynPS/2 Synaptics TouchPad: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "33"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event11 - TPPS/2
IBM TrackPoint: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "34"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event12 -
ThinkPad Extra Buttons: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "28"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event7 -
Microsoft Microsoft® Nano Transceiver v2.1 Consumer Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd" "29"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event8 -
Microsoft Microsoft® Nano Transceiver v2.1 Consumer Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) AIGLX:
Suspending AIGLX clients for VT switch
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) systemd-logind:
got pause for 13:74
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) systemd-logind:
got pause for 13:71
``
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.4-0ubuntu18.04.3
ProcVersionSignature: Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.13
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 2 00:03:10 2020
DisplayManager: gdm3
InstallationDate: Installed on 2020-03-13 (19 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
(20200203.1)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic wayland-session
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https://bugs.launchpad.net/bugs/1870165
Title:
GDM/gnome-shell crash/freeze when switching keyboard layouts
Status in gnome-shell package in Ubuntu:
New
Bug description:
on my pc there are multiple keyboard layouts configured.(EN/JA/DE)
When using the keyboard shortcut to switch the layout (Super+Space) in some
situations (criteria not entirely clear) the whole UI freezes up and becomes
unresponsive. The only workaround is a hard poweroff and reboot of the system
which is rather convenient if this happens multiple times during a work day.
When switching to another terminal (Alt+F2 etc) I cam see
`/usr/lib/gdm3/gdm-x-session` having a high CPU load.
In the attached syslog file, there are repeated entries about
1) all input devices being removed
2) systemd-logind being paused
```
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"21"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event2 -
Power Button: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"24"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event4 -
Video Bus: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"25"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event1 -
Sleep Button: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"26"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event5 -
Microsoft Microsoft® Nano Transceiver v2.1: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"27"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event6 -
Microsoft Microsoft® Nano Transceiver v2.1 Mouse: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"28"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"29"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"30"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event9 -
Microsoft Microsoft® Nano Transceiver v2.1 System Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"31"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event3 - AT
Translated Set 2 keyboard: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"32"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event10 -
SynPS/2 Synaptics TouchPad: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"33"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event11 -
TPPS/2 IBM TrackPoint: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"34"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event12 -
ThinkPad Extra Buttons: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"28"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event7 -
Microsoft Microsoft® Nano Transceiver v2.1 Consumer Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (**) Option "fd"
"29"
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) event8 -
Microsoft Microsoft® Nano Transceiver v2.1 Consumer Control: device removed
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II) AIGLX:
Suspending AIGLX clients for VT switch
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II)
systemd-logind: got pause for 13:74
Mar 31 22:40:25 mangan /usr/lib/gdm3/gdm-x-session[1811]: (II)
systemd-logind: got pause for 13:71
``
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.4-0ubuntu18.04.3
ProcVersionSignature: Ubuntu 5.3.0-45.37~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.13
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Apr 2 00:03:10 2020
DisplayManager: gdm3
InstallationDate: Installed on 2020-03-13 (19 days ago)
InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64
(20200203.1)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
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