[Bug 2000787] Re: Live system cannot leave 'Lock Screen' when selected from menu

[Custom Automated Systems ® Pte Ltd]

Hi, the lock screen problem still exists on Ubuntu Studio 24.04.

It locked me out when the filesystem was formatting which resulted in a
waste of time as I could not see the progress and just had to redo
everything.

Ubuntu Studio does not allow me to file a bug on Launchpad (see attached
screenshot).

It is very strange that entering a blank password does not unlock the
screen if the password is blank. Or, in fact, there should be no
password prompt at all if the password is blank.

** Attachment added: "Screenshot_20240529_131059_Firefox Nightly.jpg"
   https://bugs.launchpad.net/ubuntu/+source/casper/+bug/2000787/+attachment/5783813/+files/Screenshot_20240529_131059_Firefox%20Nightly.jpg

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Title:
  Live system cannot leave 'Lock Screen' when selected from menu

Status in casper package in Ubuntu:
  Fix Released

Bug description:
  I thought this was bug 1989163 but it remains when that bug is
  squashed.

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: lubuntu-desktop 23.04.3
  ProcVersionSignature: Ubuntu 5.19.0-21.21-generic 5.19.7
  Uname: Linux 5.19.0-21-generic x86_64
  ApportVersion: 2.24.0-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.477
  CurrentDesktop: LXQt
  Date: Fri Dec 30 14:30:38 2022
  LiveMediaBuild: Lubuntu 23.04 "Lunar Lobster" - Alpha amd64 (20221229)
  SourcePackage: lubuntu-meta
  UpgradeStatus: No upgrade log present (probably fresh install)

  This fails for me (reported in comments #5, #13, #14 of bug 1989163):

  Selecting 'Lock Screen' works in my Dell Precision M4800, when running
  Lubuntu Kinetic Live. The screensaver starts and runs (a bit
  stuttering, different from earlier). The problem is to get rid of it.
  I get a pop-up window 'XscreenSaver 2021, v6.02' and it should be
  happy when pressing Enter or OK (with a blank password) but nothing
  happens and I have to stop the graphical desktop environment via
  ctrl+alt+F2.

  This seems to be different from your descriptions, but I guess it is
  related.

  Edit: I created a second user (in the live system at the virtual text
  screen tty2) and logged into it. Then tried 'Lock Screen' and then it
  worked to get back into the desktop environment. So in my case it
  seems that the pop-up window 'XscreenSaver 2021, v6.02' wants a non-
  blank password :-/

  It fails not only in a Dell with nvidia but also in a Toshiba with
  Intel graphics. I think you can reproduce the bug in most live Lubuntu
  Lunar systems.

  I don't know the name of the package containing the 'Lock Screen' tool
  called by the menu, so please modify the target package to the correct
  one.

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