[Bug 1939975] Re: GRUB2 builds from Groovy, Hirsute, Impish can not boot kernel on Yoga C630 WOS

[paul janssen]

*** This bug is a duplicate of bug 1931001 ***
    https://bugs.launchpad.net/bugs/1931001

** This bug has been marked a duplicate of bug 1931001
   kernel: watchdog: BUG: soft lockup - CPU#3 stuck for 22s!

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1939975

Title:
  GRUB2 builds from Groovy, Hirsute, Impish can not boot kernel on Yoga
  C630 WOS

Status in grub2 package in Ubuntu:
  New

Bug description:
  Hello!

  After upgrade working Focal aarch64 installation on Lenovo Yoga C630
  WOS (Qualcomm Snapdragon 850) I found that GRUB2 builds from Groovy,
  Hirsute and Impish can not boot Linux kernel - laptop is either soft
  lockup (Ctrl+Alt+Del works) or hard lockup (Ctrl+Alt+Del doesn't work)
  right after "Loading device tree" message before messages from kernel
  appear on the screen.

  Attempts to boot with "nomodeset", "acpi=force", "earlycon=efifb"
  options doesn't make any difference. On other hand rolling back GRUB2
  packages back to 2.04-1ubuntu26 fixes the issue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1939975/+subscriptions