There are things I would like the laptop to do after resuming from a disk hibernation.
In particular, I have it set at the lowest CPU frequency by default, which makes it absolutely silent (no fan noise at all) but still quick enough most of the time (I change the policy with another script when I really need more computing power). But, after resuming from a disk hibernation, the default factory behavior has been restored, which is a variable frequency and the damn fan firing up here and there in order to offer me the marvelous experience of opening programs a fraction of a second faster.
Remark: If anyone is curious about the script that sets the lowest CPU in my laptop (in case there's a better way to do this that is not affected by hibertate/resume), here it is:
sudo cpufreq-set -c 0 -g userspace sudo cpufreq-set -c 1 -g userspace sudo cpufreq-set -c 2 -g userspace sudo cpufreq-set -c 3 -g userspace sudo cpufreq-set -c 0 -f 400MHz sudo cpufreq-set -c 1 -f 400MHz sudo cpufreq-set -c 2 -f 400MHz sudo cpufreq-set -c 3 -f 400MHz
And, by the way, this needs to disable intel_pstate in grub, which tells me that this feature is not going to be there in the future. Why the heck Intel doesn't like to allow me to have a silent and slow computer at times if that is my will, is a mistery to me.