[Bug 2072153] [NEW] LUKS/Cryptsetup shows blank screen on boot in noble

[Håvard H. Garnes]

Public bug reported:

After upgrading from Ubuntu 23.10 to 24.04, I get a blank screen at boot
instead of the password prompt. I can enter my password blindly and boot
into X as usual, but nothing I have tried for getting the password
prompt has worked.

I'm on a Thinkpad T580, with an NVIDIA GeForce MX150. I'm on the nvidia
driver version 555.52.04 from the graphics drivers ppa.

I have tried various combinations of:
- not having driver version 555 installed (It was left at the old version on upgrade
- modding grub to say nosplash, gfxmode=auto or gfxmode=text or gfxmode=wxh (all gave me text, but also a kernel panic about synaptics drivers)
- modding grub to say nomodeset, and/or nvidia.modeset=0

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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to plymouth in Ubuntu.
https://bugs.launchpad.net/bugs/2072153

Title:
  LUKS/Cryptsetup shows blank screen on boot in noble

Status in plymouth package in Ubuntu:
  New

Bug description:
  After upgrading from Ubuntu 23.10 to 24.04, I get a blank screen at
  boot instead of the password prompt. I can enter my password blindly
  and boot into X as usual, but nothing I have tried for getting the
  password prompt has worked.

  I'm on a Thinkpad T580, with an NVIDIA GeForce MX150. I'm on the
  nvidia driver version 555.52.04 from the graphics drivers ppa.

  I have tried various combinations of:
  - not having driver version 555 installed (It was left at the old version on upgrade
  - modding grub to say nosplash, gfxmode=auto or gfxmode=text or gfxmode=wxh (all gave me text, but also a kernel panic about synaptics drivers)
  - modding grub to say nomodeset, and/or nvidia.modeset=0

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/2072153/+subscriptions