Public bug reported:
After booting into 5.3.0-26 on my Lenovo X390, it has started to loose
network connection when connected to the Thunderbolt 3 Gen 2 dock after
a while. It varies how long it takes, but anywhere from quite fast
after boot to several hours of uptime. Suddenly no traffic goes through
the interface in the dock, but the device seems to be up. Enabling wifi
after it happens works fine, but unselecting "Enable Networking" in
network manager, or quitting it, makes the whole computer hang (can move
mouse, but no input from keyboard is registered anymore, or so it seems
at least)
Rebooting after it happens requires hard reset, as nothing happens after
Network Manager should stop.
Probably related to the patch introduces in LP: #1827961
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: linux-image-5.3.0-29-generic 5.3.0-29.31
ProcVersionSignature: Ubuntu 5.3.0-29.31-generic 5.3.13
Uname: Linux 5.3.0-29-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: peder 3620 F.... pulseaudio
/dev/snd/controlC1: peder 3620 F.... pulseaudio
/dev/snd/pcmC1D0p: peder 3620 F...m pulseaudio
/dev/snd/controlC0: peder 3620 F.... pulseaudio
CurrentDesktop: i3
Date: Thu Feb 6 12:11:54 2020
InstallationDate: Installed on 2019-10-31 (98 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: LENOVO 20Q1S6WC00
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-29-generic
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.3.0-29-generic N/A
linux-backports-modules-5.3.0-29-generic N/A
linux-firmware 1.183.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 08/13/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N2JET77W (1.55 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20Q1S6WC00
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrN2JET77W(1.55):bd08/13/2019:svnLENOVO:pn20Q1S6WC00:pvrThinkPadX390:rvnLENOVO:rn20Q1S6WC00:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X390
dmi.product.name: 20Q1S6WC00
dmi.product.sku: LENOVO_MT_20Q1_BU_Think_FM_ThinkPad X390
dmi.product.version: ThinkPad X390
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug eoan
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https://bugs.launchpad.net/bugs/1862159
Title:
Networking through Thunderbolt 3 Gen 2 stops working after a while
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