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[Daniel van Vugt <1920749@xxxxxxxxxxxxxxxxxx>]

Since you say the problem started mid-March I wonder if it's a
regression in kernel 5.8.0-45.51.

Are you able to boot an older kernel? Please also try some other
versions from:

https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D

** Package changed: xorg-server (Ubuntu) => xf86-input-wacom (Ubuntu)

** Changed in: xf86-input-wacom (Ubuntu)
       Status: Incomplete => New

** Also affects: linux (Ubuntu)
   Importance: Undecided
       Status: New

** Summary changed:

- [Thinkpad Yoga X1] Computer stuck when screen touched with touchpen
+ [Lenovo ThinkPad X1 Yoga 4th] Computer stuck when screen touched with touchpen

** Package changed: linux (Ubuntu) => linux-hwe-5.8 (Ubuntu)

** Changed in: linux-hwe-5.8 (Ubuntu)
       Status: New => Incomplete

** Changed in: xf86-input-wacom (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1920749

Title:
  [Lenovo ThinkPad X1 Yoga 4th] Computer stuck when screen touched with
  touchpen

Status in linux-hwe-5.8 package in Ubuntu:
  Incomplete
Status in xf86-input-wacom package in Ubuntu:
  Invalid

Bug description:
  I have a Lenovo Thinkpad X1 Yoga 4th Gen. My OS version is 20.04.

  My touchscreen works fine, but when I use my pen the entire OS freezes
  and even any sound that plays repeats in a loop that is maybe half a
  second long. The only way I found to get out of this is to force
  shutdown. I can reproduce this on my laptop without fail. And it is
  independent of any program I have open.

  This problem started around 17th March (I don't remember exactly) and
  update almost every day.

  Description:	Ubuntu 20.04.2 LTS
  Release:	20.04
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: skip
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroRelease: Ubuntu 20.04
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation UHD Graphics 620 (Whiskey Lake) [8086:3ea0] (rev 02) (prog-if 00 [VGA controller])
     Subsystem: Lenovo UHD Graphics 620 (Whiskey Lake) [17aa:2292]
  InstallationDate: Installed on 2020-05-09 (317 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: LENOVO 20QFS10B00
  Package: xorg-server (not installed)
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-45-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.8.0-45.51~20.04.1-generic 5.8.18
  Tags:  focal ubuntu
  Uname: Linux 5.8.0-45-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/14/2021
  dmi.bios.release: 1.43
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N2HET60W (1.43 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20QFS10B00
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 31
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.22
  dmi.modalias: dmi:bvnLENOVO:bvrN2HET60W(1.43):bd01/14/2021:br1.43:efr1.22:svnLENOVO:pn20QFS10B00:pvrThinkPadX1Yoga4th:rvnLENOVO:rn20QFS10B00:rvrSDK0J40697WIN:cvnLENOVO:ct31:cvrNone:
  dmi.product.family: ThinkPad X1 Yoga 4th
  dmi.product.name: 20QFS10B00
  dmi.product.sku: LENOVO_MT_20QF_BU_Think_FM_ThinkPad X1 Yoga 4th
  dmi.product.version: ThinkPad X1 Yoga 4th
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
  version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1
  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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