[Bug 1973150] Re: Plymouth splash text and password fields never displayed in QEMU/KVM

Fri May 13 02:43:21 UTC 2022

** Summary changed:

- Fresh encrypted installation, no field is displayed for entering decryption password, but blindly entering the password succeeds
+ Plymouth splash text and password fields never displayed in QEMU/KVM

** Changed in: plymouth (Ubuntu)
   Importance: Undecided => High

** Changed in: plymouth (Ubuntu)
       Status: Incomplete => New

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Title:
  Plymouth splash text and password fields never displayed in QEMU/KVM

Status in plymouth 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 doing
  this within a virtual machine - the host OS is Ubuntu Studio 21.10
  running on an HP Z220 SFF Workstation, UEFI, no secure boot, 16 GB of
  RAM, quad-core Intel Xeon with no hyperthreading. I placed the VM disk
  image on a SATA SSD different than the SSD the host OS is installed
  on.

  After following the steps in the testcase mentioned above and
  rebooting the system, I was presented with a solid black screen.
  Opening the System Monitor on the host OS revealed that the VM was
  using almost no CPU. I tried blindly entering the disk's decryption
  password into the VM by clicking in the black screen of the VM, typing
  the password, and hitting Enter. Upon doing so, the VM's CPU usage
  immediately spiked, and I was presented with a login screen in the VM
  not too long after. I was able to log in and get to the desktop, where
  I'm currently typing this bug report.

  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: Upon rebooting in step 25, you should be presented
  with a field to input the disk decryption password into.

  Actual results: You are presented with a black screen, but you can
  blindly enter the password into the VM and get it to boot.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.10
  Package: plymouth 0.9.5+git20211018-1ubuntu3
  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
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May 12 03:33:04 2022
  DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
  InstallationDate: Installed on 2022-05-12 (0 days ago)
  InstallationMedia: Ubuntu 22.10 "Kinetic Kudu" - Alpha amd64 (20220511.1)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Lsusb-t:
   /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 5000M
   /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 480M
       |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 480M
  MachineType: QEMU Standard PC (Q35 + ICH9, 2009)
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-27-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no username)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-27-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  SourcePackage: plymouth
  TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/01/2014
  dmi.bios.release: 0.0
  dmi.bios.vendor: SeaBIOS
  dmi.bios.version: 1.14.0-2
  dmi.chassis.type: 1
  dmi.chassis.vendor: QEMU
  dmi.chassis.version: pc-q35-6.0
  dmi.modalias: dmi:bvnSeaBIOS:bvr1.14.0-2:bd04/01/2014:br0.0:svnQEMU:pnStandardPC(Q35+ICH9,2009):pvrpc-q35-6.0:cvnQEMU:ct1:cvrpc-q35-6.0:sku:
  dmi.product.name: Standard PC (Q35 + ICH9, 2009)
  dmi.product.version: pc-q35-6.0
  dmi.sys.vendor: QEMU

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