[Bug 2076297] Re: Ubuntu Studio 24.04: Plymouth graphical splash screen not working

[Benjamin Drung]

Probably related change:

initramfs-tools (0.142ubuntu23) noble; urgency=medium

  [ Daniel van Vugt ]
  * hooks/framebuffer: Only add simple/tiny framebuffer drivers. This is to
    limit the size of initrd when FRAMEBUFFER=y is soon enabled for desktop
    installations (LP: #1970069, #1869655).

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Title:
  Ubuntu Studio 24.04: Plymouth graphical splash screen not working

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  Plymouth graphical splash screen is not working at boot up, there is only text splash shown.
  At shutddwn graphical splash is shown.

  Kernel: 6.8.0-38-lowlatency

  Based on dmesg, the 'amdgpu' driver is loaded as late as 10..16
  seconds after the boot has started, which seems to be too late for
  Plymouth to show the graphical splash.

  Not sure if "systemd modprobe drm" is responsible for getting amdgpu
  loaded eventually, but also that is starting quite late in the
  process.

  Comparing amdgpu load time to for example on openSUSE Tumbleweed on
  the same PC, it takes 4..5 seconds, so 6..11 seconds less than on
  Ubuntu!

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