touch input lost touch end event

[bihong]

If the touch is on the screen and taps the screen with the pen, the touch is interrupted and the touch end event is not received. This problem is reproduced in ubuntu20.04. ubuntu18.04 does not have this problem. This is the log obtained using xinput --test-xi2.

EVENT type 23 (RawTouchUpdate)
    device: 2 (10)
    detail: 2
    valuators:
          0: 39423.40 (39423.40)
          1: 35779.45 (35779.45)

EVENT type 23 (RawTouchUpdate)
    device: 2 (10)
    detail: 2
    valuators:
          0: 39423.40 (39423.40)
          1: 35777.45 (35777.45)

EVENT type 23 (RawTouchUpdate)
    device: 2 (10)
    detail: 2
    valuators:
          0: 39423.40 (39423.40)
          1: 35779.45 (35779.45)

EVENT type 11 (HierarchyChanged)
    Changes happened: [new slave]
    device 2 [master pointer (3)] is enabled
    device 3 [master keyboard (2)] is enabled
    device 4 [slave pointer (2)] is enabled
    device 5 [slave keyboard (3)] is enabled
    device 6 [slave keyboard (3)] is enabled
    device 7 [slave keyboard (3)] is enabled
    device 8 [slave keyboard (3)] is enabled
    device 9 [slave keyboard (3)] is enabled
    device 10 [slave pointer (2)] is enabled
    device 11 [slave keyboard (3)] is enabled
    device 12 [slave keyboard (3)] is enabled
    device 13 [slave keyboard (3)] is enabled
    device 14 [slave keyboard (3)] is enabled
    device 15 [slave keyboard (3)] is enabled
    device 16 [slave keyboard (3)] is enabled
    device 17 [slave keyboard (3)] is enabled
    device 18 [slave pointer (2)] is enabled
    device 19 [slave keyboard (3)] is enabled
    device 20 [slave pointer (2)] is enabled
    device 21 [slave keyboard (3)] is enabled
    device 22 [slave keyboard (3)] is enabled
    device 23 [slave keyboard (3)] is enabled
    device 24 [slave pointer (2)] is enabled
    device 25 [slave keyboard (3)] is enabled
    device 26 [slave keyboard (3)] is enabled
    device 27 [slave pointer (2)] is enabled
    device 28 [floating slave (0)] is disabled
    changes: [new slave]
EVENT type 12 (PropertyEvent)
     property: 338 'Device Accel Velocity Scaling'
     changed: deleted
EVENT type 12 (PropertyEvent)
     property: 337 'Device Accel Adaptive Deceleration'
     changed: deleted
EVENT type 12 (PropertyEvent)
     property: 336 'Device Accel Constant Deceleration'
     changed: deleted
EVENT type 12 (PropertyEvent)
     property: 335 'Device Accel Profile'
     changed: deleted
EVENT type 12 (PropertyEvent)
     property: 203 'Device Enabled'
     changed: modified
EVENT type 11 (HierarchyChanged)
    Changes happened: [device enabled]
    device 2 [master pointer (3)] is enabled
    device 3 [master keyboard (2)] is enabled
    device 4 [slave pointer (2)] is enabled
    device 5 [slave keyboard (3)] is enabled
    device 6 [slave keyboard (3)] is enabled
    device 7 [slave keyboard (3)] is enabled
    device 8 [slave keyboard (3)] is enabled
    device 9 [slave keyboard (3)] is enabled
    device 10 [slave pointer (2)] is enabled
    device 11 [slave keyboard (3)] is enabled
    device 12 [slave keyboard (3)] is enabled
    device 13 [slave keyboard (3)] is enabled
    device 14 [slave keyboard (3)] is enabled
    device 15 [slave keyboard (3)] is enabled
    device 16 [slave keyboard (3)] is enabled
    device 17 [slave keyboard (3)] is enabled
    device 18 [slave pointer (2)] is enabled
    device 19 [slave keyboard (3)] is enabled
    device 20 [slave pointer (2)] is enabled
    device 21 [slave keyboard (3)] is enabled
    device 22 [slave keyboard (3)] is enabled
    device 23 [slave keyboard (3)] is enabled
    device 24 [slave pointer (2)] is enabled
    device 25 [slave keyboard (3)] is enabled
    device 26 [slave keyboard (3)] is enabled
    device 27 [slave pointer (2)] is enabled
    device 28 [slave pointer (2)] is enabled
    changes: [device enabled]
EVENT type 1 (DeviceChanged)
    device: 2 (28)
    reason: SlaveSwitch
 Reporting 3 classes:
  Class originated from: 28. Type: XIButtonClass
  Buttons supported: 7
  Button labels: None None None "SECONDARY" None None None
  Button state:
  Class originated from: 28. Type: XIValuatorClass
  Detail for Valuator 0:
    Label: Abs X
    Range: 0.000000 - 16777215.000000
    Resolution: 0 units/m
    Mode: absolute
    Current value: 0.000000
  Class originated from: 28. Type: XIValuatorClass
  Detail for Valuator 1:
    Label: Abs Y
    Range: 0.000000 - 16777215.000000
    Resolution: 0 units/m
    Mode: absolute
    Current value: 0.000000

EVENT type 17 (RawMotion)
    device: 2 (28)
    detail: 0
    flags:
    valuators:
          0: 11471359.32 (11471359.32)
          1: 9371135.44 (9371135.44)

EVENT type 17 (RawMotion)
    device: 2 (28)
    detail: 0
    flags:
    valuators:
          0: 11471359.32 (11471359.32)
          1: 9371135.44 (9371135.44)

EVENT type 15 (RawButtonPress)
    device: 2 (28)
    detail: 1
    flags:
    valuators:

EVENT type 10 (FocusOut)
    device: 3 (3)
    windows: root 0x200 event 0x3e00001 child 0x0
    mode: NotifyNormal (detail NotifyNonlinear)
    flags: [same screen]
    buttons: 1
    modifiers: locked 0 latched 0 base 0 effective: 0
    group: locked 0 latched 0 base 0 effective: 0
    root x/y: 2800.00 / 1206.00
    event x/y: 2590.00 / 1018.00
EVENT type 17 (RawMotion)
    device: 2 (28)
    detail: 0
    flags:
    valuators:
          0: 11471359.32 (11471359.32)
          1: 9371135.44 (9371135.44)

EVENT type 16 (RawButtonRelease)
    device: 2 (28)
    detail: 1
    flags:
    valuators:

EVENT type 13 (RawKeyPress)
    device: 3 (21)
    detail: 37
    valuators:

EVENT type 13 (RawKeyPress)
    device: 3 (21)
    detail: 54
    valuators:

^C
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: nd 1169 F.... pulseaudio
 /dev/snd/controlC2: nd 1169 F.... pulseaudio
 /dev/snd/controlC0: nd 1169 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-11-25 (139 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
IwConfig:
 lo no wireless extensions.

 eno1 no wireless extensions.
MachineType: Hewlett-Packard HP ProDesk 680 G1 TWR
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-39-generic root=UUID=c693e44a-a0bb-4d3f-b89e-5c41681ad92c ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.13.0-39.44~20.04.1-generic 5.13.19
RelatedPackageVersions:
 linux-restricted-modules-5.13.0-39-generic N/A
 linux-backports-modules-5.13.0-39-generic N/A
 linux-firmware 1.187.23
RfKill:

Tags: focal
Uname: Linux 5.13.0-39-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: 07/13/2015
dmi.bios.release: 2.65
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L01 v02.65
dmi.board.asset.tag: 4CV6092WHT
dmi.board.name: 18E7
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: 4CV6092WHT
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL01v02.65:bd07/13/2015:br2.65:svnHewlett-Packard:pnHPProDesk680G1TWR:pvr:rvnHewlett-Packard:rn18E7:rvr:cvnHewlett-Packard:ct6:cvr:skuC8T91AV:
dmi.product.family: 103C_53307F G=D
dmi.product.name: HP ProDesk 680 G1 TWR
dmi.product.sku: C8T91AV
dmi.sys.vendor: Hewlett-Packard

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Libera.chat.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1964761/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1964761

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

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