I just installed a 20.04 on an Intel Alder Lake platform.
My problem is that the system fails to power down (also fails to sleep/hibernate).
Here is my journalctl -b:
mar 04 14:01:12 incomparable systemd[1]: Reached target System Shutdown.
mar 04 14:01:12 incomparable systemd[1]: Reached target Late Shutdown Services.
mar 04 14:01:12 incomparable systemd[1]: systemd-poweroff.service: Deactivated successfully.
mar 04 14:01:12 incomparable systemd[1]: Finished System Power Off.
mar 04 14:01:12 incomparable systemd[1]: Reached target System Power Off.
mar 04 14:01:12 incomparable systemd[1]: Shutting down.
mar 04 14:01:13 incomparable systemd-shutdown[1]: Syncing filesystems and block devices.
mar 04 14:01:13 incomparable systemd-shutdown[1]: Sending SIGTERM to remaining processes...
mar 04 14:01:13 incomparable systemd-journald[531]: Journal stopped
The shutdown sequence seems to be performed correctly, except that the system is not powered down.
I don't know if that can be useful, but I get these message at boot:
mar 04 13:40:29 incomparable kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.XHCI.RHUB.HS14.GPCX], AE_ALREADY_EXISTS (20210730/dswload2-326)
mar 04 13:40:29 incomparable kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20210730/psobject-220)
mar 04 13:40:29 incomparable kernel: ACPI BIOS Error (bug): Failure creating named object [\_SB.PC00.XHCI.RHUB.HS14.GPC], AE_ALREADY_EXISTS (20210730/dswload2-326)
mar 04 13:40:29 incomparable kernel: ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20210730/psobject-220)
mar 04 13:40:29 incomparable kernel: ACPI: Skipping parse of AML opcode: Method (0x0014)
What can I do?