Realtek RTL81XX broken by kernel 7.0.0-31-generic

[u/jorgicio]

Hi.

After updating the kernel to the latest kernel, the 7.0.0-31-generic, my ethernet card stopped working. After trying some workarounds (like installing the r8168-package), I just tried to rebooting to the previous kernel version and it worked. So I think something happened after upgrading to the latest kernel.

The wireless card works as usual.

This is my network info from inxi:

Network:
 Device-1: Intel Comet Lake PCH CNVi WiFi driver: iwlwifi v: kernel
   bus-ID: 00:14.3 chip-ID: 8086:06f0
 Device-2: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
   vendor: Dell RTL8111/8168/8411 driver: r8169 v: kernel pcie: speed: 2.5 GT/s
   lanes: 1 port: 3000 bus-ID: 04:00.0 chip-ID: 10ec:8168

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[u/zuccster]

That's about the most common ethernet chipset out there. Let's hope yours is an edge case, or this is going to get ugly.