I had time to bisect kernel:

# bad: [af7acadc09d232b50ef83011d9c6368c925ef32f] UBUNTU: Ubuntu-5.3.0-40.32
# good: [1ecdc2a4b15cf2032094966a30bc79992968beb2] UBUNTU: Ubuntu-5.3.0-29.31
git bisect start 'Ubuntu-5.3.0-40.32' 'Ubuntu-5.3.0-29.31'
# good: [ec8e731b6b8941cd561eb4cd5f987dbf0268edcb] md/raid0: avoid RAID0 data 
corruption due to layout confusion.
git bisect good ec8e731b6b8941cd561eb4cd5f987dbf0268edcb
# bad: [fb787b4169ee66faf0a78488476e0398f5e283a1] spi: gpio: prevent memory 
leak in spi_gpio_probe
git bisect bad fb787b4169ee66faf0a78488476e0398f5e283a1
# good: [b9a9d432b09d1100c8fe3982b4a53b9307f03466] x86/mce: Lower throttling 
MCE messages' priority to warning
git bisect good b9a9d432b09d1100c8fe3982b4a53b9307f03466
# bad: [b268b5877901fa69f4a34e94643108c0bb9112e0] tun: fix data-race in 
gro_normal_list()
git bisect bad b268b5877901fa69f4a34e94643108c0bb9112e0
# bad: [67e07f18209160bbabaf112cfefa4454d299949b] perf jevents: Fix resource 
leak in process_mapfile() and main()
git bisect bad 67e07f18209160bbabaf112cfefa4454d299949b
# good: [b5c04c65cafa25745356b85ace1c3b80b8ac5d58] s390/mm: add mm_pxd_folded() 
checks to pxd_free()
git bisect good b5c04c65cafa25745356b85ace1c3b80b8ac5d58
# bad: [99226e3d1768352047769426058c6fb922d05c89] media: rcar_drif: fix a 
memory disclosure
git bisect bad 99226e3d1768352047769426058c6fb922d05c89
# bad: [03edfe2eecb66a0b664f344df9478b0179733ba5] iio: dln2-adc: fix 
iio_triggered_buffer_postenable() position
git bisect bad 03edfe2eecb66a0b664f344df9478b0179733ba5
# bad: [2535c05ffda6d344eb4917178a8ecdf7835e87c2] libata: Ensure ata_port probe 
has completed before detach
git bisect bad 2535c05ffda6d344eb4917178a8ecdf7835e87c2
# good: [be64fadc7c51317046112a4b4c9895575343ced3] net: hns3: add struct 
netdev_queue debug info for TX timeout
git bisect good be64fadc7c51317046112a4b4c9895575343ced3
# first bad commit: [2535c05ffda6d344eb4917178a8ecdf7835e87c2] libata: Ensure 
ata_port probe has completed before detach

It seems that the first bad commit just force ata synchronization. I
have no idea how I can test this more for now, but I am available for
testing.

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1867983

Title:
  Computer is freezed after suspend

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I am using an old HP EliteBook 6930p with current Ubuntu.

  When the computer is suspended, even after a fresh boot, it does not
  wake up: the power comes back, but the laptop is frozen, and does not
  respond to ping.

  It is working fine with 5.3.0-29, but not with 5.3.0-40 nor 5.3.0-42.

  I am holding kernel purge for now, but this is annoying.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: linux-image-5.3.0-29-generic 5.3.0-29.31
  ProcVersionSignature: Ubuntu 5.3.0-29.31-generic 5.3.13
  Uname: Linux 5.3.0-29-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  isabelle   1010 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Mar 18 20:46:35 2020
  HibernationDevice: RESUME=UUID=f606f815-8935-4921-9b8b-e0d8030bb18c
  InstallationDate: Installed on 2015-03-15 (1830 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  MachineType: Hewlett-Packard HP EliteBook 6930p
  PccardctlStatus:
   Socket 0:
     3.3V
    16-bit
    PC Card
     Subdevice 0 (function 0) bound to driver "pata_pcmcia"
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-29-generic 
root=UUID=34085e95-4240-40e4-87fe-18dc9b60b1c1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.3.0-29-generic N/A
   linux-backports-modules-5.3.0-29-generic  N/A
   linux-firmware                            1.183.4
  SourcePackage: linux
  UpgradeStatus: Upgraded to eoan on 2019-11-03 (136 days ago)
  dmi.bios.date: 07/31/2009
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68PCU Ver. F.12
  dmi.board.name: 30DB
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 87.27
  dmi.chassis.asset.tag: CZC939161W
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: 
dmi:bvnHewlett-Packard:bvr68PCUVer.F.12:bd07/31/2009:svnHewlett-Packard:pnHPEliteBook6930p:pvrF.12:rvnHewlett-Packard:rn30DB:rvrKBCVersion87.27:cvnHewlett-Packard:ct10:cvr:
  dmi.product.family: 103C_5336AN
  dmi.product.name: HP EliteBook 6930p
  dmi.product.sku: J1610781
  dmi.product.version: F.12
  dmi.sys.vendor: Hewlett-Packard

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