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[Steve Arnold <1897491@xxxxxxxxxxxxxxxxxx>]

PING:  can you just update your LTS package to 2.0.8 please?  The
current one is *broken* on armv7.  Thanks.

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https://bugs.launchpad.net/bugs/1897491

Title:
  greeter hang with 100% CPU with black display

Status in lightdm-gtk-greeter package in Ubuntu:
  New

Bug description:
  Description:    Ubuntu 20.04.1 LTS
  Release:        20.04

  lightdm-gtk-greeter:
    Installed: 2.0.8-1ubuntu1
    Candidate: 2.0.8-1ubuntu1
    Version table:
   *** 2.0.8-1ubuntu1 100
          100 /var/lib/dpkg/status
       2.0.6-0ubuntu1 500
          500 http://ports.ubuntu.com focal/universe armhf Packages

  Chromebook armv7 install of focal tarball, followed by manual upgrade
  and xubuntu-desktop install.  Selecting lightdm display manager
  results in the above behavior.  Switching to gdm3 *does* work,
  however, requiring a full gnome-desktop install seems to defeat the
  purpose of xubuntu-desktop.

  The workarounds using Memlock in the service file for lightdm have no
  affect, and neither does a native arm package rebuild of 2.0.6.  The
  one thing that *does* work (besides switching to gnome) is building
  the debian 2.0.8 package using ubuntu deb tarball.  Otherwise all you
  get are the log errors shown below.

  The greeter log shows the following:

  ** Message: 19:40:54.740: Starting lightdm-gtk-greeter 2.0.6 (Sep 18
  2018, 01:17:10)

  (process:5105): GLib-ERROR **: 19:40:54.851: creating thread 'gmain': Error creating thread: Resource temporarily unavailable
  ** Message: 19:51:32.569: Starting lightdm-gtk-greeter 2.0.6 (Sep 18 2018, 01:17:10)

  (process:5597): GLib-ERROR **: 19:51:32.571: creating thread 'gmain': Error creating thread: Resource temporarily unavailable
  ** Message: 20:07:27.951: Starting lightdm-gtk-greeter 2.0.6 (Sep 18 2018, 01:17:10)

  (process:6133): GLib-ERROR **: 20:07:27.954: creating thread 'gmain': Error creating thread: Resource temporarily unavailable
  ** Message: 20:09:14.102: Starting lightdm-gtk-greeter 2.0.6 (Sep 18 2018, 01:17:10)
                 
  (process:6244): GLib-ERROR **: 20:09:14.105: creating thread 'gmain': Error creating thread: Resource temporarily unavailable
  ** Message: 20:10:52.081: Starting lightdm-gtk-greeter 2.0.6 (Sep 18 2018, 01:17
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.9
  Architecture: armhf
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 20.04
  Package: lightdm-gtk-greeter 2.0.8-1ubuntu1 [origin: unknown]
  PackageArchitecture: armhf
  Tags: third-party-packages focal
  Uname: Linux 5.8.12 armv7l
  UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin audio bluetooth cdrom cloud9ide dialout dip docker eqep floppy gpio i2c iio input kmem netdev plugdev pwm remoteproc spi systemd-journal tisdk users video weston-launch xenomai
  _MarkForUpload: True

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