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Does your system support the Advanced Configuration and Power Control (ACPI) system? (Since you're using a 64-bit system, it probably does.)
Have you checked your boot kernel command line to make sure that a noacpi directive was not added? (Look in /boot/grub2/grub.cfg to see your kernel boot command line(s).)
Have you checked your BIOS settings to see if your ACPI was turned off?
Does your system support the Advanced Configuration and Power Control (ACPI) system? (Since you're using a 64-bit system, it probably does.)
Have you checked your boot kernel command line to make sure that a noacpi directive was not added? (Look in /boot/grub2/grub.cfg to see your kernel boot command line(s).)
Have you checked your BIOS settings to see if your ACPI was turned off?
yes, system support it.
I do not use nocapi.
BIOS has ACPI turned on.
Matthew Garrett : "Your firmware refuses to hand over control of PCIe functionality to the kernel, which is something the spec allows it to do. This isn't a bug."
what is the reason that it is reported as an error instead of warning if it is not bug ?
Is it really correct behaviour that firmware refuses to kernel overtake control ?
Does it mean that if something is wrong with firmware - there is no way to correct it by the kernel (like powersaving management) ?
Any more information I would much appreciate ?
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