Public bug reported:

Since upgrading from 19.10 (eoan) to 20.04 (focal), hibernate-disk fails
to properly hibernate and shutdown the system; instead, Ubuntu resumes
instantly.

$ sudo hibernate-disk
[sudo] password for xyz: 
hibernate-disk:Warning: Tuxonice binary signature file not found.
$

(Note that this warning has been there earlier and is presumably not
associated with this bug.)

Expected: Switch to console, memory-page writeout progress indication,
poweroff

Observed: Switch to console, very quickly switch back to X11

Excerpt from dmesg:

[  418.377514] usbcore: deregistering interface driver uvcvideo
[  419.227465] Filesystems sync: 0.006 seconds
[  419.227468] Freezing user space processes ... (elapsed 0.002 seconds) done.
[  419.229889] OOM killer disabled.
[  419.230429] PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
[  419.230432] PM: Marking nosave pages: [mem 0x0009d000-0x000fffff]
[  419.230440] PM: Marking nosave pages: [mem 0x99438000-0xffffffff]
[  419.233760] PM: Basic memory bitmaps created
[  419.234176] PM: Preallocating image memory... done (allocated 1188843 pages)
[  420.040021] PM: Allocated 4755372 kbytes in 0.80 seconds (5944.21 MB/s)
[  420.040021] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) 
done.
[  420.041324] printk: Suspending console(s) (use no_console_suspend to debug)
[  420.041755] wlp3s0: deauthenticating from cc:ce:1e:61:2e:d0 by local choice 
(Reason: 3=DEAUTH_LEAVING)
[  421.278599] ACPI: EC: interrupt blocked
[  421.297107] ACPI: Preparing to enter system sleep state S4
[  421.301832] ACPI: EC: event blocked
[  421.301833] ACPI: EC: EC stopped
[  421.301834] PM: Saving platform NVS memory
[  421.302557] Disabling non-boot CPUs ...
[  421.303996] smpboot: CPU 1 is now offline
[  421.307624] smpboot: CPU 2 is now offline
[  421.309904] IRQ 129: no longer affine to CPU3
[  421.310921] smpboot: CPU 3 is now offline
[  421.314818] smpboot: CPU 4 is now offline
[  421.317033] IRQ 16: no longer affine to CPU5
[  421.317040] IRQ 132: no longer affine to CPU5
[  421.318049] smpboot: CPU 5 is now offline
[  421.320365] IRQ 126: no longer affine to CPU6
[  421.320373] IRQ 130: no longer affine to CPU6
[  421.321405] smpboot: CPU 6 is now offline
[  421.325743] smpboot: CPU 7 is now offline
[  421.330059] PM: Creating hibernation image:
[  422.045974] PM: Need to copy 1182218 pages
[  422.045977] PM: Normal pages needed: 1182218 + 1024, available pages: 7053219
[  423.427947] PM: Hibernation image created (1182218 pages copied)
[  421.330504] PM: Restoring platform NVS memory
[  421.330638] ACPI: EC: EC started
[  421.331412] Enabling non-boot CPUs ...
[  421.331453] x86: Booting SMP configuration:
[  421.331454] smpboot: Booting Node 0 Processor 1 APIC 0x2
[  421.332297] CPU1 is up
[  421.332327] smpboot: Booting Node 0 Processor 2 APIC 0x4
[  421.333137] CPU2 is up
[  421.333164] smpboot: Booting Node 0 Processor 3 APIC 0x6
[  421.333987] CPU3 is up
[  421.334013] smpboot: Booting Node 0 Processor 4 APIC 0x1
[  421.334926] CPU4 is up
[  421.334956] smpboot: Booting Node 0 Processor 5 APIC 0x3
[  421.335640] CPU5 is up
[  421.335666] smpboot: Booting Node 0 Processor 6 APIC 0x5
[  421.336447] CPU6 is up
[  421.336469] smpboot: Booting Node 0 Processor 7 APIC 0x7
[  421.337232] CPU7 is up
[  421.340095] ACPI: Waking up from system sleep state S4
[  421.347884] ACPI: EC: interrupt unblocked
[  421.390488] ACPI: EC: event unblocked
[  421.391425] tpm tpm0: tpm_try_transmit: send(): error -5
[  421.403775] iwlwifi 0000:03:00.0: Applying debug destination EXTERNAL_DRAM
[  421.553049] iwlwifi 0000:03:00.0: Applying debug destination EXTERNAL_DRAM
[  421.603306] [drm] Reducing the compressed framebuffer size. This may lead to 
less power savings than a non-reduced-size. Try to increase stolen memory size 
if available in BIOS.
[  421.634367] iwlwifi 0000:03:00.0: FW already configured (0) - re-configuring
[  421.714565] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[  421.715010] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[  421.715012] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) 
filtered out
[  421.715083] ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
[  421.715396] ata1.00: supports DRM functions and may not be fully accessible
[  421.716087] ata1.00: disabling queued TRIM support
[  421.718110] ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
[  421.718112] ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) 
filtered out
[  421.718178] ata1.00: ACPI cmd ef/10:09:00:00:00:a0 (SET FEATURES) succeeded
[  421.718400] ata1.00: supports DRM functions and may not be fully accessible
[  421.718987] ata1.00: disabling queued TRIM support

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: hibernate 2.0+15+g88d54a8-1
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
ApportVersion: 2.20.11-0ubuntu19
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Mar 11 11:55:21 2020
InstallationDate: Installed on 2016-11-26 (1200 days ago)
InstallationMedia: Kubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1)
PackageArchitecture: all
SourcePackage: hibernate
UpgradeStatus: Upgraded to focal on 2020-03-06 (5 days ago)

** Affects: hibernate (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: amd64 apport-bug focal

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https://bugs.launchpad.net/bugs/1866984

Title:
  hibernate-disk resumes instantly

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