Interesting that the d3cold_allowed change made some differences (I'm
assuming it was failing 100% of the times before that change).
Few more questions. After a bad resume:
1) are there unkillable processes (D state) in the system (`ps axuw |
grep D`)?
2) does `sudo iwlist wlp4s0 scan` return any error or does it hang
indefinitely?
3) do you have bluetooth enabled (what's the output of `sudo rfkill
list`)?
As a temporary workaround you can automate the modprobe trick (#3) doing
something like the following:
$ cat /lib/systemd/system-sleep/iwlmvm.sh
#!/bin/sh
case $1 in
pre)
modprobe -r iwlmvm
;;
post)
modprobe iwlmvm
;;
esac
But it'd be nice to find a proper solution to this. Thanks!
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1828134
Title:
Wifi not working after suspend/resume cycle
Status in linux package in Ubuntu:
Confirmed
Bug description:
About 75% of the time for the past few weeks (I don't have a time
where this started), my wifi is not working after resume from suspend.
I'm happy to provide more debugging info if needed.
I have tried an rmmod/modprobe on on the iwlwifi,iwlmvm modules just
to see after the resume, and didn't re-enable the card.
The symptoms are, the wlp4so interface is DOWN, I can't bring it up.
gnome-network-manager widget turning the interface off/on doesn't
work. I don't see anything glaring in dmesg.
ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: linux-image-generic 5.0.0.14.15
ProcVersionSignature: Ubuntu 5.0.0-14.15-generic 5.0.6
Uname: Linux 5.0.0-14-generic x86_64
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dpb 4587 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Tue May 7 18:49:01 2019
InstallationDate: Installed on 2018-06-18 (323 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: LENOVO 20HRCTO1WW
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-14-generic
root=UUID=fa64d67d-26bf-4c42-a12f-c45b6ea5117c ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-5.0.0-14-generic N/A
linux-backports-modules-5.0.0-14-generic N/A
linux-firmware 1.178
SourcePackage: linux
UpgradeStatus: Upgraded to disco on 2019-03-15 (53 days ago)
dmi.bios.date: 02/14/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N1MET52W(1.37)
dmi.board.asset.tag: Not Available
dmi.board.name: 20HRCTO1WW
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:bvrN1MET52W(1.37):bd02/14/2019:svnLENOVO:pn20HRCTO1WW:pvrThinkPadX1Carbon5th:rvnLENOVO:rn20HRCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 5th
dmi.product.name: 20HRCTO1WW
dmi.product.sku: LENOVO_MT_20HR_BU_Think_FM_ThinkPad X1 Carbon 5th
dmi.product.version: ThinkPad X1 Carbon 5th
dmi.sys.vendor: LENOVO
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