Comment 79 for bug 1983180

It is January 2023 now, and this bug is still active in kernel 5.15.86. :(

I am running KDE Neon with self compiled kernel 5.15.x (because it is marked as "longterm") on a Fujitsu mainboard, equipped with an Intel Core i5. (See below.)

I wouldn't mind having these messages in the systemlog, as they are harmless and the system runs without any quirk. But but they appear on the console as well, even interrupting the splash screen! (Which is a bit of a humiliation, if there's a Windows user looking over your shoulder while your machine is booting...)

I know that this is a pure cosmetic complain, but it has been happening for more than a year now, and I really would like to get rid of this annoyance. I tried the usual grub command line options like

"loglevel=3"

"acpi_osi=! \"acpi_osi=Windows 2015\""

but neither did suppress these console messages.

Hardware information:

~$ LC_ALL="C" sudo dmidecode -t 2
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0043, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: FUJITSU
        Product Name: D3431-A1
        Version: S26361-D3431-A1
        Serial Number: 51857501
        Asset Tag:
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis:
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0

~$ LC_ALL="C" lscpu
Architecture: x86_64
  CPU op-mode(s): 32-bit, 64-bit
  Address sizes: 39 bits physical, 48 bits virtual
  Byte Order: Little Endian
CPU(s): 4
  On-line CPU(s) list: 0-3
Vendor ID: GenuineIntel
  Model name: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
    CPU family: 6
    Model: 94
    Thread(s) per core: 1
    Core(s) per socket: 4
    Socket(s): 1
    Stepping: 3
    CPU max MHz: 3600.0000
    CPU min MHz: 800.0000
    BogoMIPS: 6399.96
    Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts ac
                         pi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_p
                         erfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dte
                         s64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2
                         apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefet
                         ch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriorit
                         y ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx
                         smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hw
                         p_notify hwp_act_window hwp_epp md_clear flush_l1d arch_capabilities
...