Public bug reported:

I had put the dock on the bottom of the screen and also set to hide 
automatically. 
The dock works fine as expected but there are sometimes (actually like 90% of 
the time) that it behaves weird when I try to access it with the mouse pointer, 
the dock starts to bounce quickly without stopping and then it's kind of hard 
to press the icons on it (when I'm lucky I can click the icon), other times I 
had to move away the pointer from the bottom and then move it back to access 
the dock. 
I made a video of it although it's very short but you can see for a brief of 
time how the dock starts to bounce.
I haven't installed new packages or applications that change the behaviour of 
the dock in any way.


tavoge@e6430s:~$ lsb_release -rd
Description:    Ubuntu 20.04 LTS
Release:        20.04


tavoge@e6430s:~$ apt-cache policy xorg
xorg:
  Instalados: 1:7.7+19ubuntu14
  Candidato:  1:7.7+19ubuntu14
  Tabla de versión:
 *** 1:7.7+19ubuntu14 500
        500 http://mx.archive.ubuntu.com/ubuntu focal/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
Uname: Linux 5.4.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
BootLog: Error: [Errno 13] Permiso denegado: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Jun  3 11:40:48 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus: virtualbox, 6.1.6, 5.4.0-33-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 
09) (prog-if 00 [VGA controller])
   Subsystem: Dell 3rd Gen Core processor Graphics Controller [1028:057d]
InstallationDate: Installed on 2020-05-29 (5 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. Latitude E6430s
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-33-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/30/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A21
dmi.board.name: 0XHTPW
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvrA21:bd11/30/2018:svnDellInc.:pnLatitudeE6430s:pvr01:rvnDellInc.:rn0XHTPW:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E6430s
dmi.product.sku: Latitude E6430s
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
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

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


** Tags: amd64 apport-bug focal ubuntu

** Attachment added: "ubuntu dock bouncing crazy"
   
https://bugs.launchpad.net/bugs/1881941/+attachment/5380067/+files/WhatsApp%20Video%202020-06-03%20at%2012.23.40%20PM.mp4

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1881941

Title:
  Ubuntu dock behaves crazy when hidden

Status in xorg package in Ubuntu:
  New

Bug description:
  I had put the dock on the bottom of the screen and also set to hide 
automatically. 
  The dock works fine as expected but there are sometimes (actually like 90% of 
the time) that it behaves weird when I try to access it with the mouse pointer, 
the dock starts to bounce quickly without stopping and then it's kind of hard 
to press the icons on it (when I'm lucky I can click the icon), other times I 
had to move away the pointer from the bottom and then move it back to access 
the dock. 
  I made a video of it although it's very short but you can see for a brief of 
time how the dock starts to bounce.
  I haven't installed new packages or applications that change the behaviour of 
the dock in any way.

  
  tavoge@e6430s:~$ lsb_release -rd
  Description:  Ubuntu 20.04 LTS
  Release:      20.04

  
  tavoge@e6430s:~$ apt-cache policy xorg
  xorg:
    Instalados: 1:7.7+19ubuntu14
    Candidato:  1:7.7+19ubuntu14
    Tabla de versión:
   *** 1:7.7+19ubuntu14 500
          500 http://mx.archive.ubuntu.com/ubuntu focal/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: xorg 1:7.7+19ubuntu14
  ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
  Uname: Linux 5.4.0-33-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.2
  Architecture: amd64
  BootLog: Error: [Errno 13] Permiso denegado: '/var/log/boot.log'
  CasperMD5CheckResult: skip
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Jun  3 11:40:48 2020
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 6.1.6, 5.4.0-33-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] 
(rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell 3rd Gen Core processor Graphics Controller [1028:057d]
  InstallationDate: Installed on 2020-05-29 (5 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: Dell Inc. Latitude E6430s
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-33-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/30/2018
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A21
  dmi.board.name: 0XHTPW
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvrA21:bd11/30/2018:svnDellInc.:pnLatitudeE6430s:pvr01:rvnDellInc.:rn0XHTPW:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6430s
  dmi.product.sku: Latitude E6430s
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.101-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
  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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