[Bug 1901043] Re: No sound in ubiquity-dm with nomodeset

[William Wilson]

The verification passed for focal. The following steps were taken for
verification:

  1)boot to safe graphics mode
    a) observe that no startup sound is played
    b) `watch -n 1 'systemctl status sound.target'`
      1) wait for sound.target to become active
      2) observe that no startup sound is played after
         sound.target becomes active
  2) download source for ubiquity version 20.04.15.11
    a) copy the changed files gtk_ui.py and misc.py
       to a flash drive
  3) reboot to safe graphics mode
    a) add `break=init` to the kernel command line
    b) in the initramfs, copy gtk_ui.py and misc.py from the
       flash drive to the root/ file system
    c) exit initramfs and allow boot to continue
    d) once the boot process has finished, observe
       that no startup sound is immediately played
    e) `cat /proc/cmdline` to ensure that `nomodeset`
       is on the kernel command line
    f) `watch -n 1 'systemctl status sound.target'`
      1) the startup sound is played when sound.target
         becomes active. Success!
    

** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done verification-done-focal

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https://bugs.launchpad.net/bugs/1901043

Title:
  No sound in ubiquity-dm with nomodeset

Status in Release Notes for Ubuntu:
  Fix Released
Status in ubiquity package in Ubuntu:
  Fix Released
Status in ubiquity source package in Focal:
  Fix Committed
Status in ubiquity source package in Groovy:
  Won't Fix

Bug description:

  [Impact]

   * When booting to "Safe Graphics" mode the system startup sound would
     sometimes not be played

   * This is an accessibility issue as the system startup sound is meant to
     indicate that Ubiquity is ready

  [Test Case]

   * Boot an installer image to Safe Graphics mode and listen for the
  sound

   * You can optionally use `systemctl status sound.target` to monitor when the
     sound should be played. This should occur shortly after sound.target becomes
     active

  [Where problems could occur]

   * If sound.target never comes up, the system ready sound will not be played.
     This could be caused by a missing or broken sound card

  [Other Info]

   * It is expected behavior that the sound target may take longer to become active
     when nomodeset is on the kernel command line. This is because nomodeset prevents
     the kernel from pre-loading audio drivers.

   * This problem seems to be more prevalent with Intel sound cards

  [Original Description]

  Ubuntu Groovy Desktop

  There is no sound in ubiquity-dm with nomodeset (safe graphics mode)

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: ubiquity 20.10.13
  ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
  Uname: Linux 5.8.0-25-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.455
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Oct 22 15:20:00 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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