The Generation 2 dock which I made a video about Part number: 40AS0090UK seems to restart in recent kernels like 5.9.2-arch1-1

ACPI error

ACPI Error: No handler for Region [ECSI] (0000000067e9b69a) [EmbeddedControl] (20200717/evregion-127)
ACPI Error: Region EmbeddedControl (ID=3) has no handler (20200717/exfldio-261)
ACPI Error: Aborting method \_SB.UBTC.ECRD due to previous error (AE_NOT_EXIST) (20200717/psparse-529)
ACPI Error: Aborting method \_SB.UBTC.NTFY due to previous error (AE_NOT_EXIST) (20200717/psparse-529)
ACPI Error: Aborting method \_SB.PCI0.LPC0.EC0._Q4F due to previous error (AE_NOT_EXIST) (20200717/psparse-529)
ACPI Error: No handler for Region [ECSI] (0000000067e9b69a) [EmbeddedControl] (20200717/evregion-127)
ACPI Error: Region EmbeddedControl (ID=3) has no handler (20200717/exfldio-261)
ACPI Error: Aborting method \_SB.UBTC.ECRD due to previous error (AE_NOT_EXIST) (20200717/psparse-529)
ACPI Error: Aborting method \_SB.UBTC.NTFY due to previous error (AE_NOT_EXIST) (20200717/psparse-529)
ACPI Error: Aborting method \_SB.PCI0.LPC0.EC0._Q4F due to previous error (AE_NOT_EXIST) (20200717/psparse-529)

Full logs https://s.natalian.org/2020-11-02/dock-restarting.txt

Any ideas how to fix?

Could be fixed in a firmware update! https://github.com/fwupd/fwupd/issues/2540

Please contact me!