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a60fb26
(Get the code!)
The issue appears to be fixed (at least 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.
(I'm on Ubuntu 22.04 LTS now though, no longer 20.04 LTS.)
The system now sporadically "drops" the Realtek Ethernet controller instead. (It disconnects from the bus and keeps getting reset.) This can be brought up again reliably though by shortly power-cycling the docking station. (It's best to shortly interrupt power to the dock, so that it comes back up before the notebook goes into suspend.)
Sometimes the "dropping Ethernet controller" will "only" cause a network interruption, while sometimes, it will freeze kworkers and therefore the system. Power-cycling the dock will bring Ethernet connectivity back and unfreeze the system.
I might create another bug report for this issue. Just wanted to report back on the display issue that it appears to be fixed with most recent firmware, but there appear to be other regressions.