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73416ba
(Get the code!)
The issue with monitors "dropping" appears to be fixed for me with the latest firmware.
- UEFI Version 1.14 (R1CUJ72W), issued on 2022-07-29.
- USB-Docking (Gen 2) Firmware Version 1.1.18, issued on 2022-09-14.
However, I now have the issue of my Ethernet connection "dropping" shortly after boot.
The Ethernet controller "disappears" from the bus, apparently due to some power management event. (Something regarding "link power management" is logged before it "disappears".) It seems like the kernel module for the Realtek chip then cyclically tries to reset the controller and upload firmware to it, which fails, causing it to reset again and so on. Sometimes it seems like this cyclical reset can even lock up the kernel and therefore the system. Power-cycling the docking station solves the issue, as it apparently causes the Ethernet controller to get initialized correctly (accepting the temporary firmware upload) and the link coming up. It also "unfreezes" the system if it is frozen due to being stuck in the "controller reset cycle".
This is on Ubuntu 22.04 LTS though.
There's really something weird going on with the high-speed busses on these Ryzen-based systems it seems, and depending on the UEFI, it appears to affect different parts of the system.