Public bug reported:

Hi Guys,

Exactly the same issue as bug #1945061

GDM still crash when switching user.

To reproduce the issue:

Login as user A, keep user A logged in and lock the screen. Try to
switch to user B, enter the password and you got back to the user list
(loop)


avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) NVIDIA(0): 
Setting mode 
"HDMI-1:2560x1440_120+2560+0{ForceCompositionPipeline=On,ForceFullCompositionPipeline=On},DP-0:2560x1440_120+0+0{ForceCompositionPipeline=On,ForceFullCompositionPipeline=On}"
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event2  - Power 
Button: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event2  - Power 
Button: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:64
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event0  - Sleep 
Button: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event0  - Sleep 
Button: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:71
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event7  - Eee PC 
WMI hotkeys: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event7  - Eee PC 
WMI hotkeys: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:70
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event6  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) Keyboard: is tagged 
by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event6  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) Keyboard: device is 
a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:65
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event1  - Power 
Button: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event1  - Power 
Button: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:77
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event13 - Razer 
Razer Viper Mini: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event13 - Razer 
Razer Viper Mini: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:69
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event5  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) System Control: is 
tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event5  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) System Control: 
device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:74
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event10 - Razer 
Razer Viper Mini: is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event10 - Razer 
Razer Viper Mini: device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:68
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event4  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) Consumer Control: 
is tagged by udev as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event4  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB) Consumer Control: 
device is a keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:72
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event8  - Razer 
Razer Viper Mini: is tagged by udev as: Mouse
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event8  - Razer 
Razer Viper Mini: device is a pointer
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) systemd-logind: 
got resume for 13:67
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event3  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB): is tagged by udev 
as: Keyboard
avr 19 20:12:25 Jupiter /usr/libexec/gdm-x-session[2478]: (II) event3  - Cooler 
Master Technology Inc. MasterKeys Lite L Combo Keyboard(KB): device is a 
keyboard
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
not releasing fd for 13:74, still in use
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
not releasing fd for 13:68, still in use
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:71
avr 19 20:12:36 Jupiter gsd-color[2775]: failed to connect to device: Failed to 
connect to missing device 
/org/freedesktop/ColorManager/devices/xrandr_Samsung_Electric_Company_LC49G95T_H4ZR200280_gdm_120
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:77
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:74
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:72
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:70
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:69
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:68
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:67
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:64
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:65
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) UnloadModule: 
"libinput"
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) systemd-logind: 
releasing fd for 13:66
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) NVIDIA(GPU-0): 
Deleting GPU-0
avr 19 20:12:36 Jupiter /usr/libexec/gdm-x-session[4351]: (II) Server 
terminated successfully (0). Closing log file.
avr 19 20:12:36 Jupiter gdm-launch-environment][4343]: 
pam_unix(gdm-launch-environment:session): session closed for user gdm
avr 19 20:12:36 Jupiter gdm-launch-environment][4343]: GLib-GObject: 
g_object_unref: assertion 'G_IS_OBJECT (object)' failed
avr 19 20:12:36 Jupiter gdm3[1801]: Gdm: Child process -4349 was already dead.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: gdm3 42.0-1ubuntu6
ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
Uname: Linux 5.15.0-25-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: GNOME
Date: Tue Apr 19 20:13:06 2022
InstallationDate: Installed on 2018-01-01 (1569 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20171221)
SourcePackage: gdm3
UpgradeStatus: Upgraded to jammy on 2022-04-06 (13 days ago)
mtime.conffile..etc.gdm3.custom.conf: 2018-11-01T14:01:52.647430

** Affects: gdm3 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug jammy

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https://bugs.launchpad.net/bugs/1969516

Title:
  gdm3 crash when switching users

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