ACPI errors on boot

[oshan.wisumperuma]

recently I installed opensuse on a laptop (Dell G5 15 SE). I'm seeing this error on boot screen before the login gui. I was using manjaro and there I haven't seen these errors. Thanks in Advance

$ dmesg -l err
[    0.330752] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPC0.EC0], AE_NOT_FOUND (20200925/dswload2-162)
[    0.330772] ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20200925/psobject-220)
[    3.694026] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf counter.
[    8.074113] [drm:amdgpu_device_resize_fb_bar [amdgpu]] *ERROR* Problem resizing BAR0 (-22).

[dcurtisfra]

@oshan.wisumperuma:

The errors are not unusual with AMD hardware – AMD Ryzen 5 3400G machine –

 > dmesg -l err
[    1.834622] pci 0000:00:00.2: AMD-Vi: Unable to read/write to IOMMU perf counter.
[    5.456593] sp5100-tco sp5100-tco: Watchdog hardware is disabled
 >

A possible reason is, the openSUSE decision to strictly observe licensing issues and agreements …

• Other distributions seem to be following another (legal) course …

[Nightstalker]

I also got errors I haven't with other distros but this doesn't keep TW running fine on my laptops.
For the one I'm typing right this post right now:

% dmesg -l err
[    0.065501] DMAR-IR: [Firmware Bug]: ioapic 2 has no mapping iommu, interrupt remapping will be disabled
[    0.145254] ACPI Error: Needed type [Reference], found [Integer] 0000000010b41051 (20200925/exresop-66)
[    0.145263] ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [Store] (20200925/dswexec-431)
[    0.145268] ACPI Error: Aborting method \_PR.CPU0._PDC due to previous error (AE_AML_OPERAND_TYPE) (20200925/psparse-529)
[ 2567.475892] ERROR @wl_notify_scan_status : 
[ 7475.418282] ERROR @wl_notify_scan_status : 

The last two errors appeared since update of broadcom-wl* driver to the latest version. The only visible thing is the link speed isn't showing anymore on NetWorkManager.