[Bug 1823259] Re: Update from grub-common AMD64 2.02-2ubuntu8.12 to 2.02-2ubuntu8.13 removed some Grub settings

[Steve Langasek]

Reassigning this to the grub2 source package, which is the source for
grub-common.

The grub2 2.02-2ubuntu8.13 update specifically introduces changes to the
handling of config files.  It does not introduce changes to the CONTENTS
of the config files, it is only supposed to reduce the number of false-
positive prompts that users see.  However, /etc/default/grub is
precisely the config file whose handling has been changed, so if
something has gone missing from this file, this is potentially a
regression introduced by this SRU.

Can you show the timestamp of /etc/default/grub (ls -l
/etc/default/grub) to confirm that the last modification time matches
when you did the upgrade?  Or have you already edited /etc/default/grub
again?

Can you attach /var/lib/ucf/cache/\:etc\:default\:grub from your system
and also show the timestamp of that file?

** Package changed: grub (Ubuntu) => grub2 (Ubuntu)

** Changed in: grub2 (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1823259

Title:
  Update from grub-common AMD64 2.02-2ubuntu8.12 to 2.02-2ubuntu8.13
  removed some Grub settings

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  First, let me say that I don't have a lot of information, and will be
  happy if this is a "just me" thing.  But here's what happened.  Today
  around 8:30am on Ubuntu 18.04.2 HWE, I performed an apt update and apt
  upgrade.  Among the things that got upgraded was for grub-common,
  among a few others.  Upgrade proceeds without error and I continue to
  use my laptop.  A few hours pass and a shut down my laptop.  When I
  turn it back on, it boots, but the screen doesn't redraw properly.
  Full-screen windows don't properly show up, everything is real slow to
  render, mouse is slow to move.  I did a few things like try to switch
  to lightdm and reinstall xserver-xorg, but that didn't help.

  What *did* help was check on /etc/default/grub.  My laptop needs to
  have the Linux kernel parameter i915.modeset=1 in order for the
  display to work normally.  For some reason, this was absent after the
  update from this morning.  Considering grub-common updated, this is my
  suspect, however I don't know why it happened.

  I'd be welcome to include additional information, but I don't know
  what to provide.  And as I said, maybe it's just me.

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