[Bug 1910769] Re: systemd-logind: loss of input devices when logging in after restart

[Dan Streetman]

*** This bug is a duplicate of bug 1944711 ***
    https://bugs.launchpad.net/bugs/1944711

I suspect this is due to bug 1944711, which i'll dup this one to; i know
your bug is far older, but since i couldn't reproduce your bug and i'm
not sure if it's the same, i didn't want to take it over with the fix
for that bug. If that one turns out not to fix this please feel free to
un-dup this bug.

** This bug has been marked a duplicate of bug 1944711
   restarting systemd-logind loses all existing sessions

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Title:
  systemd-logind: loss of input devices when logging in after restart

Status in systemd package in Ubuntu:
  New

Bug description:
  # Steps to reproduce

  1) Login as a regular user.
  2) `sudo systemctl restart systemd-logind`

  This boots you back to GDM, as you would expect.

  3) Login as a user.
  4) Wait a few seconds.

  # Expected behaviour

  I can continue to use my system normally.

  # Actual behaviour

  My keyboard and mouse stop working; unplugging/replugging has no
  effect.  Everything on screen continues to behave normally.

  # Debugging Notes

  I noticed, when Ctrl-Alt-F'ing around trying to figure out what was
  going on, that there are _two_ GDM sessions apparently running after
  the logind restart.

  Furthermore, I logged in on a console (Ctrl-Alt-F2) before performing
  the restart of logind, and when my keyboard stopped working in my
  graphical session, typing commands still worked!  (I couldn't see this
  console, obviously, but I tested it by typing `mplayer Music/*/*` and
  observing music start playing.)

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: systemd 246.6-1ubuntu1
  ProcVersionSignature: Ubuntu 5.8.0-36.40-generic 5.8.18
  Uname: Linux 5.8.0-36-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu50.3
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Fri Jan  8 10:06:56 2021
  InstallationDate: Installed on 2019-05-07 (611 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  MachineType: Gigabyte Technology Co., Ltd. B450M DS3H
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-36-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash resume=UUID=73909634-a75d-42c9-8f66-a69138690756 pcie_aspm=off vt.handoff=7
  SourcePackage: systemd
  SystemdDelta:
   [EXTENDED]   /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
   [EXTENDED]   /lib/systemd/system/systemd-logind.service → /etc/systemd/system/systemd-logind.service.d/override.conf
   [EXTENDED]   /lib/systemd/system/user at .service → /lib/systemd/system/user at .service.d/timeout.conf
   
   3 overridden configuration files found.
  SystemdFailedUnits:
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
   ------
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
  UpgradeStatus: Upgraded to groovy on 2020-06-22 (199 days ago)
  dmi.bios.date: 01/25/2019
  dmi.bios.release: 5.13
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F4
  dmi.board.asset.tag: Default string
  dmi.board.name: B450M DS3H-CF
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF4:bd01/25/2019:br5.13:svnGigabyteTechnologyCo.,Ltd.:pnB450MDS3H:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450MDS3H-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: Default string
  dmi.product.name: B450M DS3H
  dmi.product.sku: Default string
  dmi.product.version: Default string
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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