Public bug reported:
I`m using Ubuntu 18.10 on my B350M GAMING PRO motherboard and AMD 2400G CPU.
See some error in dmesg. Hope a fix in the upcoming update.
Linux version 4.18.0-10-generic
[ 0.076193] ACPI: Added _OSI(Module Device)
[ 0.076193] ACPI: Added _OSI(Processor Device)
[ 0.076194] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.076194] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.076195] ACPI: Added _OSI(Linux-Dell-Video)
[ 0.076196] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[ 0.086490] ACPI BIOS Error (bug): Failure creating [\_SB.SMIC],
AE_ALREADY_EXISTS (20180531/dswload2-316)
[ 0.086497] ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog
(20180531/psobject-221)
[ 0.086501] ACPI BIOS Error (bug): Failure creating [\_SB.SMIB],
AE_ALREADY_EXISTS (20180531/dsfield-594)
[ 0.086582] ACPI: 8 ACPI AML tables successfully acquired and loaded
[ 0.088710] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.090528] ACPI: Interpreter enabled
[ 0.090541] ACPI: (supports S0 S3 S4 S5)
[ 0.090542] ACPI: Using IOAPIC for interrupt routing
[ 0.090886] PCI: Using host bridge windows from ACPI; if necessary, use
"pci=nocrs" and report a bug
[ 0.091196] ACPI: Enabled 2 GPEs in block 00 to 1F
[ 0.093761] ACPI: Power Resource [P0ST] (on)
[ 0.093793] ACPI: Power Resource [P3ST] (on)
[ 0.100120] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 0.100125] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM
Segments MSI]
[ 0.100360] acpi PNP0A08:00: _OSC: platform does not support [SHPCHotplug
LTR]
[ 0.100583] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER
PCIeCapability]
[ 0.100596] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus
00-3f] only partially covers this bridge
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: acpi bios
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/bugs/1804577/+attachment/5215196/+files/dmesg.txt
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https://bugs.launchpad.net/bugs/1804577
Title:
ACPI BIOS Error (bug): Failure creating [\_SB.SMIC], AE_ALREADY_EXISTS
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