[Bug 1876753] Re: Thinkpad T430 Power Cycles instead of rebooting

[lap80]

Hi, has anyone figured out why it doesn't work?
>From the tests I did it turned out that in the grub version (2.04-1ubuntu12.2) they added patches regarding efi and from there my problem appeared.
The problem also happens with the latest version (2.04-1ubuntu35).

This is the commit link I found:
https://git.launchpad.net/~ubuntu-core-dev/grub/+git/ubuntu/commit/?h=debian/2.04-1ubuntu12.2&id=d9d538a26108c5b2e80ff2abb71d41c39a17e1af

Can anyone take a look and let me know how to fix?

Thanks.

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https://bugs.launchpad.net/bugs/1876753

Title:
  Thinkpad T430 Power Cycles instead of rebooting

Status in grub package in Ubuntu:
  Incomplete

Bug description:
  After installing Xubuntu 20.04, Thinkpad T430 does not reboot properly
  any more.

  Expected behavior: Power LED and HDD stay on, System reboots.

  Actual behavior: System switches off (including power LED and HDD
  which leads to emergency head parking and loud click noise) and
  switches back on after 5 seconds.

  Problem occurs with Xubuntu 20.04 and Ubuntu 20.04 even when booted
  from live USB medium. It also occurs with Mainline Kernel 5.6.7 which
  I installed for testing.

  It does not occur with several live media used for testing (Xubuntu
  18.04, Windows 10, Manjaro 20, MX 19) or when rebooted from within
  GRUB2 on my Xubuntu installation.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-28-generic 5.4.0-28.32
  ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
  Uname: Linux 5.4.0-28-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  david      1954 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Mon May  4 17:58:49 2020
  HibernationDevice: RESUME=none
  InstallationDate: Installed on 2020-05-01 (3 days ago)
  InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: LENOVO 2351BH6
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-28-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-28-generic N/A
   linux-backports-modules-5.4.0-28-generic  N/A
   linux-firmware                            1.187
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/07/2019
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G1ETC2WW (2.82 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2351BH6
  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: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG1ETC2WW(2.82):bd08/07/2019:svnLENOVO:pn2351BH6:pvrThinkPadT430:rvnLENOVO:rn2351BH6:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.family: ThinkPad T430
  dmi.product.name: 2351BH6
  dmi.product.sku: LENOVO_MT_2351
  dmi.product.version: ThinkPad T430
  dmi.sys.vendor: LENOVO

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