[Bug 1973156] Re: Ubiquity window resizes in an odd way during Ubuntu installation when clicking "Install Now" after inputting disk encryption details

[Brian Murray]

** Changed in: ubiquity (Ubuntu)
   Importance: Medium => Low

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Title:
  Ubiquity window resizes in an odd way during Ubuntu installation when
  clicking "Install Now" after inputting disk encryption details

Status in ubiquity package in Ubuntu:
  New

Bug description:
  This bug was discovered while doing an Ubuntu QA test, "Install
  (entire disk with lvm and encryption)" for Ubuntu Kinetic. I'm using
  the same host system specs as in this bug report:
  https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1973150

  While running the test, in step 14, immediately after clicking
  "Install Now", the VM appears to be processing the information its
  been given, when suddenly there's a sharp graphical glitch. It's hard
  to describe, it's sorta like the screen gets torn and stretched left
  and right for a second or something - you'll have to actually
  reproduce the bug to get a good idea of what it's doing.

  (Edit: Upon further inspection, the Ubiquity window is resizing itself
  such that it fills the entire available horizontal area of the screen,
  at least on the screen size that virt-manager provides by default. It
  resizes like this, snaps back to normal position, resizes again, then
  snaps back again.)

  Steps to reproduce the bug:

  1: Download the Ubuntu Kinetic daily ISO from 2022-05-11. Here's the link: http://cdimage.ubuntu.com/daily-live/20220511.1/kinetic-desktop-amd64.iso
  2: Open virt-manager, and ensure that you have a connection to "QEMU/KVM User session". (If you don't, you can create this connection in virt-manager by clicking "File", "Add Connection", selecting "QEMU/KVM user session" in the "Hypervisor" drop down, then clicking "Connect".
  3: Create a new VM under QEMU/KVM user session. Select the Kinetic ISO downloaded above, set the OS to "Ubuntu 21.04" (that's the newest version my virt-manager recognizes), and give it 4 GB RAM, 2 CPU cores, and 20 GB of disk space.
  4: Follow the steps in this test procedure: http://iso.qa.ubuntu.com/qatracker/milestones/433/builds/247872/testcases/1451/results

  Expected results: In step 14, after clicking "Install Now", the VM
  should pause for a bit, processing the data you've given it, and then
  the screen should advance without any glitches.

  Actual results: After clicking "Install Now", the screen throws a fit
  for a bit before going back to normal. Everything seems normal after
  the glitch.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.10
  Package: gdm3 42.0-1ubuntu7
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May 12 04:08:49 2022
  InstallationDate: Installed on 2022-05-12 (0 days ago)
  InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220511.1)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no username)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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