Public bug reported:
[Summary]
I'm running SRU testing on Dell G7 7588(201801-26082), after resuming from
suspend I can't ssh to it.
When I checked the status of that machine by using command ifconfig, I found
there wasn't LAN card exist and LED indicator of RJ-45 port didn't blink.
[Step to reproduce]
1. install ubuntu-20.04.2
2. enable proposed repo
3. sudo apt update; sudo apt dist-upgrade -y
4. set a rtc alarm then suspend the system by "date '+%s' -d '+ 1 minutes' |
sudo tee /sys/class/rtc/rtc0/wakealarm;sudo systemctl suspend" or use
checkbox-cli run com.canonical.certification::suspend-tp
5. try to ssh to it
[Expected result]
After resuming from suspend, I can ssh to it.
[Actual result]
Can't ssh to it.
[Failure rate]
5/5
[Additional information]
CID: 202012-28554
SKU: FSB-DVT2-C3
Network adapter: Qualcomm Atheros - 1969:e0a1
kernel-version: 5.11.0-27-generic
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.11.0-27-generic 5.11.0-27.29~20.04.1
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Aug 13 08:47:33 2021
InstallationDate: Installed on 2020-08-03 (374 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux-signed-hwe-5.11
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.11 (Ubuntu)
Importance: Critical
Status: New
** Tags: amd64 apport-bug cert-sru focal package-from-proposed uec-images
** Attachment added: "output of journalctl"
https://bugs.launchpad.net/bugs/1939886/+attachment/5517764/+files/journal-201801-26082.log
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https://bugs.launchpad.net/bugs/1939886
Title:
Network connection can't come back after resuming from suspend
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