Since quite some time the BIOS displayys the following messages during boot:
Similar messages can be found in the log:
[…]
[ 0.418392] ACPI: PCI: Interrupt link LNKG disabled
[ 0.418643] ACPI: PCI: Interrupt link LNKH configured for IRQ 15
[ 0.418649] ACPI: PCI: Interrupt link LNKH disabled
[ 0.425241] ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x000000016) is beyond end of object (length 0x9) (20230331/exoparg2-393)
[ 0.425274] fbcon: Taking over console
[ 0.425359] No Local Variables are initialized for Method [_DSM]
[ 0.425366] Initialized Arguments for Method [_DSM]: (4 arguments defined for method invocation)
[ 0.425370] Arg0: (ptrval) Buffer(16) A0 40 EB C4 D2 6C E2 11
[ 0.425403] Arg1: (ptrval) Integer 0000000000000001
[ 0.425417] Arg2: (ptrval) Integer 0000000000000001
[ 0.425429] Arg3: (ptrval) Package (ptrval)
[ 0.425452] ACPI Error: Aborting method _SB.PEPD.DSM due to previous error (AE_AML_PACKAGE_LIMIT) (20230331/psparse-529)
[ 0.425491] ACPI: _SB.PEPD: failed to evaluate DSM a040ebc4-d26c-e211-bcfd-0800200c9a66 (0x300b)
[ 0.426896] ACPI: EC: interrupt unblocked
[ 0.426904] ACPI: EC: event unblocked
[ 0.426914] ACPI: EC: EC_CMD/EC_SC=0x66, EC_DATA=0x62
[ 0.426919] ACPI: EC: GPE=0x2b
[ 0.426925] ACPI: _SB.PCI0.LPCB.EC0_: Boot DSDT EC initialization complete
[ 0.426932] ACPI: _SB_.PCI0.LPCB.EC0_: EC: Used to handle transactions and events
[ 0.427427] iommu: Default domain type: Translated
[ 0.427427] iommu: DMA domain TLB invalidation policy: lazy mode
[ 0.427917] SCSI subsystem initialized
[ 0.427944] libata version 3.00 loaded.
[…]
Googling the messages found similar problems with Dell and HP PCs and the hint that a BIOS update might help. Unfortunately my BIOS is the latest BIOS acer delivered for this laptop and no updated BIOS will be available in the future.
Does anybody have an idea how I could get rid of the messages?