Public bug reported:
My T450 main laptop is generally left on all day and night. I sometimes
suspend it when moving around the house, but it's often left on all the
time. Sometimes when I go to start work in the morning there's some
corruption on screen and the laptop won't respond. I can't REISUB or ssh
in.
This has happened a few times since clean installing 20.04. Previously I
was on an upgraded-to-20.04 install and don't recall it happening there.
The other obvious difference is I'm now running ZFS which I wasn't
before. :S
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-21-generic 5.4.0-21.25
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu24
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC3: alan 8365 F.... pulseaudio
/dev/snd/controlC2: alan 8365 F.... pulseaudio
/dev/snd/controlC1: alan 8365 F.... pulseaudio
/dev/snd/controlC0: alan 8365 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 8 19:30:46 2020
InstallationDate: Installed on 2020-03-01 (38 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200301)
MachineType: LENOVO 20BV001BUK
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_pyyy5h@/vmlinuz-5.4.0-21-generic
root=ZFS=rpool/ROOT/ubuntu_pyyy5h ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.4.0-21-generic N/A
linux-backports-modules-5.4.0-21-generic N/A
linux-firmware 1.187
SourcePackage: linux
StagingDrivers: exfat
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/14/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET73WW (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BV001BUK
dmi.board.vendor: LENOVO
dmi.board.version: 0B98417 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrJBET73WW(1.37):bd08/14/2019:svnLENOVO:pn20BV001BUK:pvrThinkPadT450:rvnLENOVO:rn20BV001BUK:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad T450
dmi.product.name: 20BV001BUK
dmi.product.sku: LENOVO_MT_20BV_BU_Think_FM_ThinkPad T450
dmi.product.version: ThinkPad T450
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal staging
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https://bugs.launchpad.net/bugs/1871687
Title:
System hard locks up intermittently
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