[Bug 1867133] [NEW] spinner theme flickers Ubuntu logo on gdm transition

[Dimitri John Ledkov]

Public bug reported:

spinner theme flickers Ubuntu logo on gdm transition

At the end of boot, spinner disappears and Ubuntu logo remains 100%
opacity white on screen.

Then GDM starts, and performs a fade-in animation of background
gradient, and fade-ins Ubuntu logo.

This results in visual flicker, where Ubuntu logo temporarily
dissappears and instantly fades back in.

This should be more smooth. For example, gdm could paint ubuntu logo at
100% opacity white without animation, whilst everything else fades-in.
Or we could fade out ubuntu-logo in the spinner plymouth theme, such
that on boot it is a tasteful pulsating logo that fades out, and back
in.

** Affects: gdm3 (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: plymouth (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: champagne

** Also affects: gdm3 (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1867133

Title:
  spinner theme flickers Ubuntu logo on gdm transition

Status in gdm3 package in Ubuntu:
  New
Status in plymouth package in Ubuntu:
  New

Bug description:
  spinner theme flickers Ubuntu logo on gdm transition

  At the end of boot, spinner disappears and Ubuntu logo remains 100%
  opacity white on screen.

  Then GDM starts, and performs a fade-in animation of background
  gradient, and fade-ins Ubuntu logo.

  This results in visual flicker, where Ubuntu logo temporarily
  dissappears and instantly fades back in.

  This should be more smooth. For example, gdm could paint ubuntu logo
  at 100% opacity white without animation, whilst everything else fades-
  in. Or we could fade out ubuntu-logo in the spinner plymouth theme,
  such that on boot it is a tasteful pulsating logo that fades out, and
  back in.

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