[Bug 1861470] Status changed to Confirmed

[Ubuntu Kernel Bot]

This change was made by a bot.

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

-- 
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/1861470

Title:
  BIOS logo reappears mid-boot after the purple screen

Status in grub2 package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Confirmed
Status in linux-signed-5.4 package in Ubuntu:
  New

Bug description:
  BIOS logo (the ACPI BGRT graphic) reappears mid-boot after the purple
  screen.

  This seems to be happening reliably on multiple focal machines:

  0. Turn on or reboot the machine.
  1. See the BIOS logo.
  2. See a blank purple screen (grub)
  3. See the BIOS logo again (this bug)
  4. See the purple screen with Ubuntu logo (plymouth)
  5. See the login screen

  I believe this is related to ACPI BGRT changes in the kernel. And I
  guess it wouldn't even need fixing if we just eliminated the blank
  purple grub screen (step 2)...

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-12-generic 5.4.0-12.15
  ProcVersionSignature: Ubuntu 5.4.0-12.15-generic 5.4.8
  Uname: Linux 5.4.0-12-generic x86_64
  ApportVersion: 2.20.11-0ubuntu16
  Architecture: amd64
  Date: Fri Jan 31 11:31:44 2020
  InstallationDate: Installed on 2020-01-30 (0 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200124)
  SourcePackage: linux-signed-5.4
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu16
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dan        1316 F.... pulseaudio
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2020-01-30 (0 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200124)
  MachineType: LENOVO 20KFCTO1WW
  Package: linux-signed-5.4
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-12-generic root=UUID=50f3b272-d351-4a2a-9661-d39e9fcf2195 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.4.0-12.15-generic 5.4.8
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-12-generic N/A
   linux-backports-modules-5.4.0-12-generic  N/A
   linux-firmware                            1.185
  Tags:  focal
  Uname: Linux 5.4.0-12-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 01/10/2020
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N20ET51W (1.36 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20KFCTO1WW
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: dmi:bvnLENOVO:bvrN20ET51W(1.36):bd01/10/2020:svnLENOVO:pn20KFCTO1WW:pvrThinkPadX280:rvnLENOVO:rn20KFCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X280
  dmi.product.name: 20KFCTO1WW
  dmi.product.sku: LENOVO_MT_20KF_BU_Think_FM_ThinkPad X280
  dmi.product.version: ThinkPad X280
  dmi.sys.vendor: LENOVO

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1861470/+subscriptions