[Bug 1970069] Re: Annoying boot messages interfering with splash screen

[Daniel van Vugt]

The blanking from GRUB_TIMEOUT>0 will be made much worse by
CONFIG_FB_EFI=n because usually in Ubuntu it's the efifb that restores
the logo after Grub has wiped it. I think not having CONFIG_FB_EFI at
the same time as using GRUB_TIMEOUT>0 explains your previous "really
long time of a black screen".

I can tell you've restored GRUB_TIMEOUT=0 in the video and the one
remaining screen blank at Plymouth's startup might be bug 1836858. But
either way it's not this bug. Related bugs can be found at
https://bugs.launchpad.net/ubuntu/+bugs?field.tag=flickerfreeboot

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https://bugs.launchpad.net/bugs/1970069

Title:
  Annoying boot messages interfering with splash screen

Status in linux package in Ubuntu:
  In Progress
Status in plymouth package in Ubuntu:
  Invalid
Status in systemd package in Ubuntu:
  New

Bug description:
  Since upgrading from 20.04.6 Desktop to 22.04, the boot screen is not
  as clean as it used to be.

  Basically, the flow used to be in 20.04:

  GRUB > Splash screen > Login prompt

  Currently in 22.04:

  GRUB > Splash screen > Messages (in the attached file) > Splash screen
  again for a sec > Login prompt

  All of those messages already existed in 20.04, the difference is that
  they were not appearing during boot.

  I was able to get rid of the "usb" related messages by just adding
  "loglevel=0" in GRUB. Currently is "quiet loglevel=0 splash".

  Regarding the fsck related message, I can get rid of them by adding
  "fsck.mode=skip".

  However, I do not want to just disable fsck or set the loglevel to 0.
  This is not a sustainable solution.

  Something definitely changed here. These messages are not of enough
  relevance to be shown at boot by default, and they should remain
  hidden like they were in Focal.

  Obviously a minor issue, but important to the whole look and feel of
  the OS for desktop.

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