I’ve just installed HWE package with kernel 5.19 and noticed that core frequencies are now acting very strange.
Before the update core frequencies more or less correlated with the computation and thermal load of the core. But now, underutilized cores very often stick to 2.5 GHz even under 0% load. It can be seen on the frequency graph as a dominant horizontal line.
Is this a bug or a feature?
UPD: Rolled back to 5.15 and everything seem fine now.