I'm in doubt whether this is an invalid bug (as I cannot reproduce it
any more), or whether a fix is released (Linux code is complex, even the
ChangeLogs are long).  In any case, I'm closing the issue now, and my
mouse works.  Furthermore, it is not interesting to look into this
further, as 4.10 is end-of-life anyway (upstream).

** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1690084

Title:
  mouse disappeared

Status in linux package in Ubuntu:
  Invalid

Bug description:
  When installing linux-generic-hwe-16.04-edge, my "DELL Laser Mouse"
  didn't work any more, as confirmed by xinput(1).

  I went from linux-generic-hwe-16.04 (providing Linux 4.8) to linux-
  generic-hwe-16.04-edge (providing Linux 4.10).  When I reverted back
  to Linux 4.8, the mouse appeared again.  The enclosed info from
  lspci(8) is from the working system Ubuntu 4.8.0-51.54~16.04.1-generic
  4.8.17.

  The system is a Dell Latitude E7470 and has an up-to-date "Xenial Xerus" 
installation.
  --- 
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  mhu027     4051 F.... pulseaudio
  DistroRelease: Ubuntu 16.04
  JournalErrors:
   Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] 
failed with exit code 1: Hint: You are currently not seeing messages from other 
users and the system.
         Users in the 'systemd-journal' group can see all messages. Pass -q to
         turn off this notice.
   No journal files were opened due to insufficient permissions.
  MachineType: Dell Inc. Latitude E7470
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-51-generic 
root=/dev/mapper/vg0-lv_root ro acpi=force irqpoll quiet splash ipv6.disable=1 
vt.handoff=7
  ProcVersionSignature: Ubuntu 4.8.0-51.54~16.04.1-generic 4.8.17
  RelatedPackageVersions:
   linux-restricted-modules-4.8.0-51-generic N/A
   linux-backports-modules-4.8.0-51-generic  N/A
   linux-firmware                            1.157.8
  Tags:  xenial
  Uname: Linux 4.8.0-51-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  WifiSyslog:
   
  _MarkForUpload: True
  dmi.bios.date: 12/11/2016
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.12.3
  dmi.board.name: 0T6HHJ
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.12.3:bd12/11/2016:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn0T6HHJ:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E7470
  dmi.sys.vendor: Dell Inc.

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