Public bug reported:
Steps to reproduce:
1. Make sure that "deep" suspend is used instead of `s2idle` suspend (`echo
deep | sudo tee /sys/power/mem_sleep`). This is always the case when the
"Power->Suspend State" is set to "Linux" instead of "Windows 10" in the BIOS.
2. Trigger suspend, e.g. with GUI or `systemctl suspend -i`
3. System suspends successfully. Power light starts fading in and out, as it
should.
4. Wake up the system. This is only possible with the power button instead of
keys, which is a difference from `s2idle` suspends.
5. Unlock lock screen
6. Notice that the system will behave buggy/abnormal as the filesystem is
remounted as read-only. Shortly after resuming, applications will start to
crash or show nonsensical output.
Expected behavior:
(From step 4) System wakes up and can be used normally. The main filesystem
should of course be writable.
Ubuntu version: 20.04, latest updates as of 2020-07-28
Kernel: Linux nicolai-t14 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02
UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Computer: Thinkpad T14 (Intel), M2 NVMe SSD
`dmesg | grep ACPI | grep supports`: [ 0.511722] ACPI: (supports S0 S3 S4 S5)
tlp: tlp was running during some tests but deactivated during others. The
problem still appeared in both cases.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-42-generic 5.4.0-42.46
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: nicolai 1472 F.... pulseaudio
/dev/snd/controlC0: nicolai 1472 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Jul 28 21:55:33 2020
HibernationDevice:
RESUME=UUID=d4f9a6e6-e186-4b67-92fc-fb3bdf13921c resume_offset=34816
# Resume from /swapfile
InstallationDate: Installed on 2020-06-12 (46 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 20S1S06C00
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic
root=UUID=d4f9a6e6-e186-4b67-92fc-fb3bdf13921c ro
resume=UUID=d4f9a6e6-e186-4b67-92fc-fb3bdf13921c resume_offset=34816 quiet
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-42-generic N/A
linux-backports-modules-5.4.0-42-generic N/A
linux-firmware 1.187.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/27/2020
dmi.bios.vendor: LENOVO
dmi.bios.version: N2XET15W (1.05 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20S1S06C00
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:bvrN2XET15W(1.05):bd04/27/2020:svnLENOVO:pn20S1S06C00:pvrThinkPadT14Gen1:rvnLENOVO:rn20S1S06C00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T14 Gen 1
dmi.product.name: 20S1S06C00
dmi.product.sku: LENOVO_MT_20S1_BU_Think_FM_ThinkPad T14 Gen 1
dmi.product.version: ThinkPad T14 Gen 1
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1889306
Title:
Resuming from deep suspend on Thinkpad T14 crashes system (readonly
filesystem)
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