This NIC is supported by the 5.4.0 Focal LTS kernel, however, any changes on the switch side or even disconnecting and connecting the Ethernet cable causes the card to hang:
Jun 03 18:32:58 kvm-02 kernel: e1000e 0000:00:1f.6 eno1: Detected Hardware Unit Hang: TDH <f9> TDT <ad> next_to_use <ad> next_to_clean <f9> buffer_info[next_to_clean]: time_stamp <11e83da17> next_to_watch <fa> jiffies <11e83ddb8> next_to_watch.status <0> MAC Status <80083> PHY Status <796d> PHY 1000BASE-T Status <3800> PHY Extended Status <3000> PCI Status <10> I tried adding pcie_aspm=off to kernel boot parameters, however that does not seem to change anything. I have two Dell Optiplex 3080 Micro machines and both are experiencing this issue: 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (11) I219-LM DeviceName: Onboard - Ethernet Subsystem: Dell Ethernet Connection (11) I219-LM Flags: bus master, fast devsel, latency 0, IRQ 124 Memory at 91200000 (32-bit, non-prefetchable) [size=128K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Kernel driver in use: e1000e Kernel modules: e1000e My older machines do not have this issue: 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (5) I219-LM Subsystem: Dell Ethernet Connection (5) I219-LM Flags: bus master, fast devsel, latency 0, IRQ 125 Memory at f7100000 (32-bit, non-prefetchable) [size=128K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [e0] PCI Advanced Features Kernel driver in use: e1000e Kernel modules: e1000e -- 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/2001567 Title: Add support for newer I219-LM NICs to the 5.4.0 kernel Status in linux package in Ubuntu: Confirmed Bug description: Some newer Dell systems (I experienced this on an Optiplex 7000) include an Intel I219-LM NIC that is not supported by the 5.4.0 kernel. Later versions of the HWE kernel do support this NIC. That makes it impossible to use these systems with the FIPS kernel. Since our imaging environment does not have FIPS mode enabled, we need support for this NIC when used both with and without FIPS mode. Please backport the latest stable e1000e driver to both the 5.4.0 non- FIPS kernel & the 5.4.0 FIPS kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2001567/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp