[Bug 1778429] Re: initramfs-tools 0.130ubuntu3.1 causes hang at login with nvidia proprietary driver

[DJ]

Took another crack at debugging this and got my package upgraded. I get
the same freeze if I set RESUME=None, but if I set `RESUME=UUID=$(blkid
-s UUID -o value "/dev/mapper/cryptswap1")` I was able to get the old
behaviour back on the newer initramfs-tools

>From looking at the newer initramfs-tools diff I don't think but bug is
here, but that the change here is further revealing the bug.

I posted an issue for some support on the nvidia dev forum here:
https://devtalk.nvidia.com/default/topic/1050238/linux/freeze-after-
login-screen-in-ubuntu-18-04-with-1050ti-mobile/

And was pointed toward plymouth likely being part of the problem. Sure
enough, by removing `quite splash` from the boot options, the problem
also goes away.


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

** Summary changed:

- initramfs-tools 0.130ubuntu3.1 causes hang at login with nvidia proprietary driver
+ Hang at login with nvidia proprietary driver and encrypted swap

** Description changed:

- Tested with 0.130ubuntu3.1 and 0.130ubuntu3.2, both have the same bug.
- 0.130ubuntu3 works fine.
+ Tested with initramfs-tools 0.130ubuntu3.1 and initramfs-tools
+ 0.130ubuntu3.2, both have the same bug. 0.130ubuntu3 works fine.
  
  Description:	Ubuntu 18.04 LTS
  Release:	18.04
  
  Reproed with nvidia-396 396.24.02-0ubuntu and the 390 package as well.
  
  System is using a nvidia 1050TI mobile. With prime-select to nvidia.
  
  My setup includes an encrypted home dir, and encrypted ram disk. Boot
  drive is an Nvme ssd.
  
- 
- When installing the older working package I see this message: 
+ When installing the older working package I see this message:
  
  I: The initramfs will attempt to resume from /dev/dm-0
  I: (UUID=34e1ed83-dac8-400f-9a01-e21b9bb03dad)
  I: Set the RESUME variable to override this.
  
  I don't that that message from the broken packages.
  
  With the broken packages, once I login from gdm3, the computer freezes.
  I haven't been able to find a related error in the logs.
  
  Workarounds with the nvidia driver have included switching the prime-
  select to intel, swapping to the nouveau drivers, or booting with
  nvidia-drm.modeset=1 (which causes other issues in gnome, but does login
  to the desktop)
  
  Downgrading to initramfs-tools 0.130ubuntu3 solves the problem without
  needing to make and nvidia driver changes.
+ 
+ Also removing `quite splash` from the boot options also solves the
+ issue. So it appears the bug here is likely in plymouth.

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https://bugs.launchpad.net/bugs/1778429

Title:
  Hang at login with nvidia proprietary driver and encrypted swap

Status in initramfs-tools package in Ubuntu:
  New
Status in plymouth package in Ubuntu:
  New

Bug description:
  Tested with initramfs-tools 0.130ubuntu3.1 and initramfs-tools
  0.130ubuntu3.2, both have the same bug. 0.130ubuntu3 works fine.

  Description:	Ubuntu 18.04 LTS
  Release:	18.04

  Reproed with nvidia-396 396.24.02-0ubuntu and the 390 package as well.

  System is using a nvidia 1050TI mobile. With prime-select to nvidia.

  My setup includes an encrypted home dir, and encrypted ram disk. Boot
  drive is an Nvme ssd.

  When installing the older working package I see this message:

  I: The initramfs will attempt to resume from /dev/dm-0
  I: (UUID=34e1ed83-dac8-400f-9a01-e21b9bb03dad)
  I: Set the RESUME variable to override this.

  I don't that that message from the broken packages.

  With the broken packages, once I login from gdm3, the computer
  freezes. I haven't been able to find a related error in the logs.

  Workarounds with the nvidia driver have included switching the prime-
  select to intel, swapping to the nouveau drivers, or booting with
  nvidia-drm.modeset=1 (which causes other issues in gnome, but does
  login to the desktop)

  Downgrading to initramfs-tools 0.130ubuntu3 solves the problem without
  needing to make and nvidia driver changes.

  Also removing `quite splash` from the boot options also solves the
  issue. So it appears the bug here is likely in plymouth.

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