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[Bug 2107477] Re: [SRU] Display broken in initramfs on ARM64 laptops

 

Hello Tobias, or anyone else affected,

Accepted initramfs-tools into plucky-proposed. The package will build
now and be available at https://launchpad.net/ubuntu/+source/initramfs-
tools/0.147ubuntu1.1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
plucky to verification-done-plucky. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-plucky. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: initramfs-tools (Ubuntu Plucky)
       Status: New => Fix Committed

** Tags added: verification-needed verification-needed-plucky

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https://bugs.launchpad.net/bugs/2107477

Title:
  [SRU] Display broken in initramfs on ARM64 laptops

Status in dracut package in Ubuntu:
  Fix Released
Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in dracut source package in Plucky:
  New
Status in initramfs-tools source package in Plucky:
  Fix Committed

Bug description:
  [ Impact ]

  On affected hardware, the display only works after the initramfs.
  This means there is no visible input field if disk encryption was selected in the installer.
  The same of course applies for any other output during the initramfs.

  [ Test Plan ]

  To reproduce the issue, install an affected machine with disk encryption or add break= to the kernel command line to get an interactive initramfs shell.
  With the bug present the screen stays dark. It might still be possible to enter
  the passphrase blindly or exit the debug shell. After modules are loaded from the root file system the screen should start working.

  With the patch applied there should be visible output for the password
  or shell prompt in the initramfs.

  [ Where problems could occur ]

  The fix should only include additional modules, we should make sure
  not to accidentally drop any functionality in the process.

  [ Other Info ]

  Since dracut and initramfs-tools behave similar enough the same test
  plan should apply to both. Both are already fixed in questing and
  there is positive test feedback from users in discourse
  https://discourse.ubuntu.com/t/faq-ubuntu-25-04-on-snapdragon-x-
  elite/61016/18

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