DELL DA300 adaptor's Ethernet port not working after update

[Yen-Yung Chang]

DELL DA300 adapter's Ethernet port stopped working after recent update. Whenever the cable is plugged in to the adapter, network manager would show the cable connecting icon and immediately drop the connection. I am able to get Ethernet connection through the DA300 with another Ethernet-USBc adapter by plugging the cable to the adaptor and use DA300's USBc port though.
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ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2019-03-26 (142 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
IpRoute:
 default via 131.215.195.254 dev enx00e04c680c21 proto dhcp metric 100
 default via 10.6.41.254 dev wlp2s0 proto dhcp metric 600
 10.6.40.0/23 dev wlp2s0 proto kernel scope link src 10.6.41.210 metric 600
 131.215.195.0/24 dev enx00e04c680c21 proto kernel scope link src 131.215.195.209 metric 100
 169.254.0.0/16 dev wlp2s0 scope link metric 1000
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
Package: network-manager 1.10.14-0ubuntu2 [origin: unknown]
PackageArchitecture: amd64
Tags: third-party-packages bionic
Uname: Linux 5.2.5-050205-generic x86_64
UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2019-08-13T09:56:21.009087
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 enx00e04c680c21 ethernet connected /org/freedesktop/NetworkManager/Devices/6 Wired connection 1 483df49a-2e78-38c0-a084-58e621ab7527 /org/freedesktop/NetworkManager/ActiveConnection/6
 wlp2s0 wifi connected /org/freedesktop/NetworkManager/Devices/3 eduroam f7c3132c-f44a-4f36-ba26-88e67487dddb /org/freedesktop/NetworkManager/ActiveConnection/5
 enxc8f7509d89c6 ethernet unavailable /org/freedesktop/NetworkManager/Devices/5 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.10.14 connected started full enabled enabled enabled enabled enabled

[Olivier Tilloy (osomon)]

Can you please run the following command in a terminal to attach additional debug information to the bug report?

    apport-collect 1840066

Thanks!

[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

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[Yen-Yung Chang (gix-d)]

just did thanks!

[Kai-Heng Feng (kaihengfeng)]

After upgrade BIOS to 1.6.0 and Thunderbolt controller firmware to 43, I don't see this issue anymore. Can you confirm?

[Yen-Yung Chang (gix-d)]

Hey thanks a lot for the help! I am running on 1.6.0 BIOS. I am not sure how to check Thunderbolt firmware version separately, but I have already updated to the latest "updates" from software center when I ran into the bug. Also just now I followed https://itsfoss.com/update-firmware-ubuntu/ again and got "No upgrades for XPS 13 9380 System Firmware, current is 0.1.6.0: 0.1.6.0=same, 0.1.5.0=older, 0.1.4.0=older, 0.1.3.2=older, 0.1.2.1=older" from "sudo fwupdmgr update" at the last step in the article. Thanks again for the help.

[Kai-Heng Feng (kaihengfeng)]

I think the latest TBT firmware isn't in default fwupd repo yet.

[Kai-Heng Feng (kaihengfeng)]

It should land to the default repo soon.

[Mario Limonciello (superm1)]

It's not in support.dell.com either for Windows as I can tell. Latest version is 40.
https://www.dell.com/support/home/us/en/04/drivers/driversdetails?driverid=c25p2&oscode=wt64a&productcode=xps-13-9380-laptop

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]