apport information

** Attachment added: "PulseList.txt"
   
https://bugs.launchpad.net/bugs/1822089/+attachment/5258718/+files/PulseList.txt

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Title:
  Frequent (silent) USB disconnects with Dell TB16 dock

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I see something similar (but different) to bug 1766076 on a Dell 5530:

  - Using kernel 5.0.4 from UKUU (because current Ubuntu kernel suffers from 
other bugs that make this dock unusable)
  - BIOS 1.6.0
  - TB16 dock with a single monitor on the display port, providing power, using 
native enumeration setting in the BIOS
  - Microsoft comfort curve keyboard, webcam, headset connected to dock USB 
ports
  - Wired ethernet via the dock.

  Keyboard stops responding frequently.  There is no output in dmesg
  when this happens.  If I later unplug the keyboard I see a
  disconnection message in dmesg and I can reconnect it to the same
  port.  Sometimes it works for a day after this, other times it works
  for <60s.

  Other devices disconnect too but the pattern is different.  Much more likely 
to see the disconnect under heavy load, such as webcam/headset getting 
disconnected during a conference call.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.10-0ubuntu27
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC4:  shaun      2837 F.... pulseaudio
   /dev/snd/controlC3:  shaun      2837 F.... pulseaudio
   /dev/snd/controlC1:  shaun      2837 F.... pulseaudio
   /dev/snd/controlC0:  shaun      2837 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 19.04
  InstallationDate: Installed on 2018-12-11 (133 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 
(20181017.3)
  MachineType: Dell Inc. Precision 5530
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-13-generic 
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
  ProcVersionSignature: Ubuntu 5.0.0-13.14-generic 5.0.6
  RelatedPackageVersions:
   linux-restricted-modules-5.0.0-13-generic N/A
   linux-backports-modules-5.0.0-13-generic  N/A
   linux-firmware                            1.178
  Tags:  disco
  Uname: Linux 5.0.0-13-generic x86_64
  UpgradeStatus: Upgraded to disco on 2019-04-24 (0 days ago)
  UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo wireshark
  _MarkForUpload: True
  dmi.bios.date: 02/01/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.1
  dmi.board.name: 0FP2W2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.1:bd02/01/2019:svnDellInc.:pnPrecision5530:pvr:rvnDellInc.:rn0FP2W2:rvrA00:cvnDellInc.:ct10:cvr:
  dmi.product.family: Precision
  dmi.product.name: Precision 5530
  dmi.product.sku: 087D
  dmi.sys.vendor: Dell Inc.

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