** Tags added: cscc
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https://bugs.launchpad.net/bugs/1763817
Title:
[SRU][BIONIC] after enabling cppc dmesg fills with "ACPI CPPC: PCC
check channel failed. Status=0"
To manage notif
>From playing around it appears about 300 seconds after boot.
I was able to recreate this with kernel 4.15.0-29-generic but no longer after
running apt upgrade and rebooting to the 4.15.0-36-generic kernel.
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I did a clean install of BIONIC via ubuntu-18.04.1-server-arm64.iso on
an ARM system and encountered this on first boot. I am happy to send
logs but apport-collect states that I am not the owner
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** Description changed:
[Impact]
On ARM64 systems enabling cppccontrol=1 in firmware, the dmesg fills with
messages like:
[ 4083.960332] ACPI CPPC: PCC check channel failed. Status=0
[ 4085.546975] ACPI CPPC: PCC check channel failed. Status=0
[ 4113.939921] ACPI CPPC: PCC check channel
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Description changed:
[Impact]
On ARM64 systems enabling cppccontrol=1 in firmware, the dmesg fills with
messages like:
[ 4083.960332] ACPI CPPC: PCC check channel failed. Status=0
