I get the following error on Lenovo Yoga 7 Gen 6 AMD (14ACN6) on Ubuntu
21.10 with kernel 5.15.0-051500-generic #202110312130 SMP Sun Oct 31
21:33:20 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

[    3.216924] usbcore: registered new interface driver btusb
[    3.241133] ACPI Error: No handler for Region [ECSI] (000000008d9ed4b0) 
[EmbeddedControl] (20210730/evregion-130)
[    3.241182] ACPI Error: Region EmbeddedControl (ID=3) has no handler 
(20210730/exfldio-261)

[    3.241221] No Local Variables are initialized for Method [ECRD]

[    3.241224] No Arguments are initialized for method [ECRD]

[    3.241229] ACPI Error: Aborting method \_SB.UBTC.ECRD due to previous error 
(AE_NOT_EXIST) (20210730/psparse-529)
[    3.241278] ACPI Error: Aborting method \_SB.UBTC._DSM due to previous error 
(AE_NOT_EXIST) (20210730/psparse-529)
[    3.241350] ACPI: \_SB_.UBTC: failed to evaluate _DSM (0x6)
[    3.241364] ucsi_acpi USBC000:00: ucsi_acpi_dsm: failed to evaluate _DSM 2

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https://bugs.launchpad.net/bugs/1893624

Title:
  Ryzen 4800u, kernel 5.8.5 boot errors (AMD-Vi, ACPI, HDCP, Bluetooth)

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