Laptop freezes whenever it runs out of battery

Bug #1878338 reported by Vadim Peretokin on 2020-05-13

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6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned

Bug Description

New behaviour for Ubuntu 20.04 LTS - as soon as it runs out of battery, the laptop locks up. Any audio that was playing will be played repeatedly on a short loop.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-29-generic 5.4.0-29.33
ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
Uname: Linux 5.4.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: vadi 3163 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed May 13 07:40:48 2020
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=8c0e25d4-6e36-428e-b354-4c71b99db752
InstallationDate: Installed on 2017-02-15 (1182 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: Dell Inc. Latitude E7470
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-29-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-29-generic N/A
 linux-backports-modules-5.4.0-29-generic N/A
 linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: Upgraded to focal on 2020-05-07 (5 days ago)
dmi.bios.date: 10/08/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.22.8
dmi.board.name: 0T6HHJ
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.22.8:bd10/08/2019:svnDellInc.:pnLatitudeE7470:pvr:rvnDellInc.:rn0T6HHJ:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude E7470
dmi.product.sku: 06DC
dmi.sys.vendor: Dell Inc.

Vadim Peretokin (vperetokin) wrote :

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Kai-Heng Feng (kaihengfeng) wrote :

I never let battery on my laptop runs out... So what was the old behavior?

Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Vadim Peretokin (vperetokin) wrote :

It suspended.

Kai-Heng Feng (kaihengfeng) wrote :

If we manually suspend the system, does it work?

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