Thanks for the bug report.
It sounds like GNOME (in the mutter component) has frozen. When this
happens the cursor will still move because it is managed by the Xorg
process, but the screen contents are managed by the gnome-shell process.
Please try removing DisplayLink from the equation by unplugging your
dock or any other USB display adapter. Does the bug still occur using
only the laptop screen?
** Tags added: displaylink evdi
** Package changed: xorg (Ubuntu) => mutter (Ubuntu)
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
** Summary changed:
- Xorg freeze
+ Screen freeze
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Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1957181
Title:
Screen freeze
Status in mutter package in Ubuntu:
Incomplete
Bug description:
When having more than one window open, e.g. Firefox and a terminal and
then to swap between the two. The clicking with the mouse stops
working but it still moves. For instance when I hover over text or not
the cursor does not change. Sometimes I can still click or select text
in the original window but the coordinates of the mouse are not where
the cursor is displayed. Sometimes the keyboard dies too e.g. Alt+F2
does not work. Killing XOrg (if possible) seems to revert things to a
working state.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-92.103-generic 5.4.157
Uname: Linux 5.4.0-92-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 12 15:24:16 2022
DistUpgraded: 2020-09-07 08:54:13,457 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
evdi, 1.7.0, 4.15.0-70-generic, x86_64: installed
evdi, 1.7.0, 5.4.0-91-generic, x86_64: installed
evdi, 1.7.0, 5.4.0-92-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Occurs more often under certain circumstances
GpuHangStarted: Today
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:225c]
InstallationDate: Installed on 2019-02-13 (1063 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: LENOVO 20KGS5DU00
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-92-generic
root=UUID=c1172559-29d0-4c7c-bfab-574068d6d5cc ro quiet
splash,psmouse.synaptics_intertouch=1
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to focal on 2020-09-07 (492 days ago)
acpidump: Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py']
failed with exit code 126: Error executing command as another user: Request
dismissed
dmi.bios.date: 10/13/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N23ET75W (1.50 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20KGS5DU00
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.modalias:
dmi:bvnLENOVO:bvrN23ET75W(1.50):bd10/13/2020:svnLENOVO:pn20KGS5DU00:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KGS5DU00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 6th
dmi.product.name: 20KGS5DU00
dmi.product.sku: LENOVO_MT_20KG_BU_Think_FM_ThinkPad X1 Carbon 6th
dmi.product.version: ThinkPad X1 Carbon 6th
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.105-3~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.5
version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.5
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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