As you already stated, the kernels on my PPA are identical to the official ones from Ubuntu, with the only difference that 'acpi-cpufreq' is built as module. This allows the use of the PHC module for CPU undervolting (the 'phc-intel' module needs to be loaded at boot as replacement of 'acpi-cpufreq'; the latter cannot be replaced if it's statically built into the kernel).
The problem is, when the 'acpi-cpufreq' module is not built into the kernel, it's not automatically loaded at boot. This is why I also added 'cpufrequtils' as an additional dependency of my kernels, which is a collection of boot scripts that should load automatically the correct module at boot.
I think your problem is caused by 'cpufrequtils'. For some reason it loads the wrong module.
So, I'm now trying a different approach.
I've created a new package, called 'load-acpicpufreq-atboot', which simply adds 'acpi-cpufreq' module to /etc/modules, so it gets loaded automatically.
It's being built right now on my testing PPA
, along with a new kernel which depends on it.
This should fix your problem, test it and let me know.
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