En-Wei Wu,
Happy to do additional debugging if you could guide me.
I noticed the following in dmesg:
[ 5.860144] ucsi_acpi USBC000:00: failed to reset PPM!
[ 5.860150] ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed
If I "sudo rmmod ucsi_acpi", the CPU load issue resolves, but the GPE17
counters continue.
I cannot just add that module to /etc/modprobe.d/blacklist.conf, it will still
load.
I had to append to the GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub:
"sudo vi /etc/default/grub"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash module_blacklist=ucsi_acpi"
then, "sudo update-grub"
then, "sudo reboot"
that finally blacklists the module from loading.
---
Having explored all that, I have an interim solution.
I have restored everything back to default install of 24.04 so we can continue
gathering evidence.
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https://bugs.launchpad.net/bugs/2073538
Title:
kacpi_notify high cpu on interrupt gpe17
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