Public bug reported:

I got occasional freeze on new Ubuntu 22.04 LTS. The machine is Lenovo 7/8th 
gen Carbon with 10th gen Intel. 
But after the latest freeze and reboot (because of the freeze) I logged in and 
then it freezes everytime, propably when loading gnome setting, I see the icon 
emerging on the dock and freezing. Just before the freeze there was kernel and 
some packages upgrade)
The report is from previous kernel which I thought it was culprit but it seems 
not.

I can login to the machine with SSH therefore I produced this report. There"s 
process getting 100% of 1 cpu core: gnome-shell
After a while it blanks (as schedules) to login manager and I can login back 
and same story.

I see following error in syslog
May  5 14:02:13 graf gnome-shell[1740]: cr_parser_new_from_buf: assertion 
'a_buf && a_len' failed
May  5 14:02:13 graf gnome-shell[1740]: cr_declaration_parse_list_from_buf: 
assertion 'parser' failed
May  5 14:02:13 graf gnome-shell[1740]: cr_parser_new_from_buf: assertion 
'a_buf && a_len' failed
May  5 14:02:13 graf gnome-shell[1740]: cr_declaration_parse_list_from_buf: 
assertion 'parser' failed
May  5 14:02:13 graf gnome-shell[1740]: ATK Bridge is disabled but a11y has 
already been enabled.
May  5 14:02:14 graf gnome-shell[1740]: Registering session with GDM
May  5 14:02:17 graf gnome-shell[1740]: Could not open device 
/dev/input/event17: Could not get device info for path /dev/input/event17: No 
such file or directory
May  5 14:02:17 graf gnome-shell[1740]: Could not open device 
/dev/input/event16: GDBus.Error:System.Error.ENODEV: No such device
May  5 14:02:19 graf gnome-shell[1740]: Removing a network device that was not 
added
May  5 14:02:19 graf gnome-shell[1740]: Removing a network device that was not 
added
May  5 14:02:27 graf gnome-shell[3287]: Running GNOME Shell (using mutter 42.0) 
as a Wayland display server
May  5 14:02:27 graf gnome-shell[3287]: Device '/dev/dri/card0' prefers shadow 
buffer
May  5 14:02:27 graf gnome-shell[3287]: Added device '/dev/dri/card0' (i915) 
using atomic mode setting.
May  5 14:02:27 graf gnome-shell[3287]: Created gbm renderer for 
'/dev/dri/card0'
May  5 14:02:27 graf gnome-shell[3287]: Boot VGA GPU /dev/dri/card0 selected as 
primary
May  5 14:02:27 graf gnome-shell[3287]: Using public X11 display :0, (using :1 
for managed services)
May  5 14:02:27 graf gnome-shell[3287]: Using Wayland display name 'wayland-0'
May  5 14:02:27 graf gnome-shell[3287]: Unset XDG_SESSION_ID, 
getCurrentSessionProxy() called outside a user session. Asking logind directly.
May  5 14:02:27 graf gnome-shell[3287]: Will monitor session 2
May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
via systemd: service name='org.freedesktop.impl.portal.PermissionStore' 
unit='xdg-permission-store.service' requested by ':1.36' (uid=1000 pid=3287 
comm="/usr/bin/gnome-shell " label="unconfined")
May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
service name='org.gnome.Shell.CalendarServer' requested by ':1.36' (uid=1000 
pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
via systemd: service name='org.gnome.evolution.dataserver.Sources5' 
unit='evolution-source-registry.service' requested by ':1.39' (uid=1000 
pid=3334 comm="/usr/libexec/gnome-shell-calendar-server " label="unconfined")
May  5 14:02:27 graf gnome-shell[3287]: Telepathy is not available, chat 
integration will be disabled.
May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
via systemd: service name='org.gnome.evolution.dataserver.Calendar8' 
unit='evolution-calendar-factory.service' requested by ':1.39' (uid=1000 
pid=3334 comm="/usr/libexec/gnome-shell-calendar-server " label="unconfined")
May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
service name='org.freedesktop.FileManager1' requested by ':1.36' (uid=1000 
pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
May  5 14:02:28 graf dbus-daemon[3106]: [session uid=1000 pid=3106] Activating 
service name='org.gnome.Shell.Notifications' requested by ':1.36' (uid=1000 
pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
May  5 14:02:28 graf at-spi-dbus-bus.desktop[3293]: dbus-daemon[3293]: 
Activating service name='org.a11y.atspi.Registry' requested by ':1.0' (uid=1000 
pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
May  5 14:02:28 graf gnome-shell[3287]: Error looking up permission: 
GDBus.Error:org.freedesktop.portal.Error.NotFound: No entry for geolocation
May  5 14:02:28 graf gnome-shell[3646]: (WW) Option "-listen" for file 
descriptors is deprecated
May  5 14:02:28 graf gnome-shell[3646]: Please use "-listenfd" instead.
May  5 14:02:28 graf gnome-shell[3646]: (WW) Option "-listen" for file 
descriptors is deprecated
May  5 14:02:28 graf gnome-shell[3646]: Please use "-listenfd" instead.
May  5 14:02:28 graf gnome-shell[3287]: Could not open device 
/dev/input/event18: Could not get device info for path /dev/input/event18: No 
such file or directory
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 36 with keysym 36 (keycode f).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 31 with keysym 31 (keycode a).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 39 with keysym 39 (keycode 12).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 34 with keysym 34 (keycode d).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 37 with keysym 37 (keycode 10).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 32 with keysym 32 (keycode b).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 38 with keysym 38 (keycode 11).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 33 with keysym 33 (keycode c).
May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 35 with keysym 35 (keycode e).
May  5 14:02:28 graf gnome-shell[3287]: Could not open device 
/dev/input/event17: GDBus.Error:System.Error.ENODEV: No such device
grep: (standard input): binary file matches

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
Uname: Linux 5.15.0-25-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu82
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
Date: Thu May  5 14:27:52 2022
DistUpgraded: 2022-04-25 01:09:43,352 DEBUG failed to SystemLock() (E:Could not 
get lock /var/lib/dpkg/lock. It is held by process 68786 (dpkg), W:Be aware 
that removing the lock file is not a solution and may break your system., E:Nie 
udało się zablokować katalogu administracyjnego (/var/lib/dpkg/), czy inny 
proces go używa?)
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Comet Lake UHD Graphics [8086:9bca] (rev 04) (prog-if 00 
[VGA controller])
   Subsystem: Lenovo Comet Lake UHD Graphics [17aa:2292]
InstallationDate: Installed on 2021-04-15 (384 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 
(20210209.1)
MachineType: LENOVO 20R10015US
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-25-generic 
root=/dev/mapper/ubuntu-root ro quiet splash
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to jammy on 2022-04-24 (10 days ago)
dmi.bios.date: 11/10/2021
dmi.bios.release: 1.38
dmi.bios.vendor: LENOVO
dmi.bios.version: N2QET44W(1.38 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20R10015US
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.18
dmi.modalias: 
dmi:bvnLENOVO:bvrN2QET44W(1.38):bd11/10/2021:br1.38:efr1.18:svnLENOVO:pn20R10015US:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20R10015US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20R1_BU_Think_FM_ThinkPadX1Carbon7th:
dmi.product.family: ThinkPad X1 Carbon 7th
dmi.product.name: 20R10015US
dmi.product.sku: LENOVO_MT_20R1_BU_Think_FM_ThinkPad X1 Carbon 7th
dmi.product.version: ThinkPad X1 Carbon 7th
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

** Affects: gnome-shell (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug false-gpu-hang freeze jammy ubuntu

** Package changed: xorg (Ubuntu) => gnome-shell (Ubuntu)

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https://bugs.launchpad.net/bugs/1971704

Title:
  Wayland/Gnome Shell freezes propably on displaying Gnome Setting

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  I got occasional freeze on new Ubuntu 22.04 LTS. The machine is Lenovo 7/8th 
gen Carbon with 10th gen Intel. 
  But after the latest freeze and reboot (because of the freeze) I logged in 
and then it freezes everytime, propably when loading gnome setting, I see the 
icon emerging on the dock and freezing. Just before the freeze there was kernel 
and some packages upgrade)
  The report is from previous kernel which I thought it was culprit but it 
seems not.

  I can login to the machine with SSH therefore I produced this report. There"s 
process getting 100% of 1 cpu core: gnome-shell
  After a while it blanks (as schedules) to login manager and I can login back 
and same story.

  I see following error in syslog
  May  5 14:02:13 graf gnome-shell[1740]: cr_parser_new_from_buf: assertion 
'a_buf && a_len' failed
  May  5 14:02:13 graf gnome-shell[1740]: cr_declaration_parse_list_from_buf: 
assertion 'parser' failed
  May  5 14:02:13 graf gnome-shell[1740]: cr_parser_new_from_buf: assertion 
'a_buf && a_len' failed
  May  5 14:02:13 graf gnome-shell[1740]: cr_declaration_parse_list_from_buf: 
assertion 'parser' failed
  May  5 14:02:13 graf gnome-shell[1740]: ATK Bridge is disabled but a11y has 
already been enabled.
  May  5 14:02:14 graf gnome-shell[1740]: Registering session with GDM
  May  5 14:02:17 graf gnome-shell[1740]: Could not open device 
/dev/input/event17: Could not get device info for path /dev/input/event17: No 
such file or directory
  May  5 14:02:17 graf gnome-shell[1740]: Could not open device 
/dev/input/event16: GDBus.Error:System.Error.ENODEV: No such device
  May  5 14:02:19 graf gnome-shell[1740]: Removing a network device that was 
not added
  May  5 14:02:19 graf gnome-shell[1740]: Removing a network device that was 
not added
  May  5 14:02:27 graf gnome-shell[3287]: Running GNOME Shell (using mutter 
42.0) as a Wayland display server
  May  5 14:02:27 graf gnome-shell[3287]: Device '/dev/dri/card0' prefers 
shadow buffer
  May  5 14:02:27 graf gnome-shell[3287]: Added device '/dev/dri/card0' (i915) 
using atomic mode setting.
  May  5 14:02:27 graf gnome-shell[3287]: Created gbm renderer for 
'/dev/dri/card0'
  May  5 14:02:27 graf gnome-shell[3287]: Boot VGA GPU /dev/dri/card0 selected 
as primary
  May  5 14:02:27 graf gnome-shell[3287]: Using public X11 display :0, (using 
:1 for managed services)
  May  5 14:02:27 graf gnome-shell[3287]: Using Wayland display name 'wayland-0'
  May  5 14:02:27 graf gnome-shell[3287]: Unset XDG_SESSION_ID, 
getCurrentSessionProxy() called outside a user session. Asking logind directly.
  May  5 14:02:27 graf gnome-shell[3287]: Will monitor session 2
  May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating via systemd: service 
name='org.freedesktop.impl.portal.PermissionStore' 
unit='xdg-permission-store.service' requested by ':1.36' (uid=1000 pid=3287 
comm="/usr/bin/gnome-shell " label="unconfined")
  May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating service name='org.gnome.Shell.CalendarServer' requested by ':1.36' 
(uid=1000 pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
  May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating via systemd: service name='org.gnome.evolution.dataserver.Sources5' 
unit='evolution-source-registry.service' requested by ':1.39' (uid=1000 
pid=3334 comm="/usr/libexec/gnome-shell-calendar-server " label="unconfined")
  May  5 14:02:27 graf gnome-shell[3287]: Telepathy is not available, chat 
integration will be disabled.
  May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating via systemd: service name='org.gnome.evolution.dataserver.Calendar8' 
unit='evolution-calendar-factory.service' requested by ':1.39' (uid=1000 
pid=3334 comm="/usr/libexec/gnome-shell-calendar-server " label="unconfined")
  May  5 14:02:27 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating service name='org.freedesktop.FileManager1' requested by ':1.36' 
(uid=1000 pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
  May  5 14:02:28 graf dbus-daemon[3106]: [session uid=1000 pid=3106] 
Activating service name='org.gnome.Shell.Notifications' requested by ':1.36' 
(uid=1000 pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
  May  5 14:02:28 graf at-spi-dbus-bus.desktop[3293]: dbus-daemon[3293]: 
Activating service name='org.a11y.atspi.Registry' requested by ':1.0' (uid=1000 
pid=3287 comm="/usr/bin/gnome-shell " label="unconfined")
  May  5 14:02:28 graf gnome-shell[3287]: Error looking up permission: 
GDBus.Error:org.freedesktop.portal.Error.NotFound: No entry for geolocation
  May  5 14:02:28 graf gnome-shell[3646]: (WW) Option "-listen" for file 
descriptors is deprecated
  May  5 14:02:28 graf gnome-shell[3646]: Please use "-listenfd" instead.
  May  5 14:02:28 graf gnome-shell[3646]: (WW) Option "-listen" for file 
descriptors is deprecated
  May  5 14:02:28 graf gnome-shell[3646]: Please use "-listenfd" instead.
  May  5 14:02:28 graf gnome-shell[3287]: Could not open device 
/dev/input/event18: Could not get device info for path /dev/input/event18: No 
such file or directory
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 36 with keysym 36 (keycode f).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 31 with keysym 31 (keycode a).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 39 with keysym 39 (keycode 12).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 34 with keysym 34 (keycode d).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 37 with keysym 37 (keycode 10).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 32 with keysym 32 (keycode b).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 38 with keysym 38 (keycode 11).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 33 with keysym 33 (keycode c).
  May  5 14:02:28 graf gnome-shell[3287]: Window manager warning: Overwriting 
existing binding of keysym 35 with keysym 35 (keycode e).
  May  5 14:02:28 graf gnome-shell[3287]: Could not open device 
/dev/input/event17: GDBus.Error:System.Error.ENODEV: No such device
  grep: (standard input): binary file matches

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: xorg 1:7.7+23ubuntu2
  ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30
  Uname: Linux 5.15.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: unknown
  Date: Thu May  5 14:27:52 2022
  DistUpgraded: 2022-04-25 01:09:43,352 DEBUG failed to SystemLock() (E:Could 
not get lock /var/lib/dpkg/lock. It is held by process 68786 (dpkg), W:Be aware 
that removing the lock file is not a solution and may break your system., E:Nie 
udało się zablokować katalogu administracyjnego (/var/lib/dpkg/), czy inny 
proces go używa?)
  DistroCodename: jammy
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation Comet Lake UHD Graphics [8086:9bca] (rev 04) (prog-if 00 
[VGA controller])
     Subsystem: Lenovo Comet Lake UHD Graphics [17aa:2292]
  InstallationDate: Installed on 2021-04-15 (384 days ago)
  InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 
(20210209.1)
  MachineType: LENOVO 20R10015US
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-25-generic 
root=/dev/mapper/ubuntu-root ro quiet splash
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to jammy on 2022-04-24 (10 days ago)
  dmi.bios.date: 11/10/2021
  dmi.bios.release: 1.38
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N2QET44W(1.38 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20R10015US
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.18
  dmi.modalias: 
dmi:bvnLENOVO:bvrN2QET44W(1.38):bd11/10/2021:br1.38:efr1.18:svnLENOVO:pn20R10015US:pvrThinkPadX1Carbon7th:rvnLENOVO:rn20R10015US:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20R1_BU_Think_FM_ThinkPadX1Carbon7th:
  dmi.product.family: ThinkPad X1 Carbon 7th
  dmi.product.name: 20R10015US
  dmi.product.sku: LENOVO_MT_20R1_BU_Think_FM_ThinkPad X1 Carbon 7th
  dmi.product.version: ThinkPad X1 Carbon 7th
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.110-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20210115-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 
1:1.0.17-2build1

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