System freezes

[Stephane]

have you try theses parameters on boot kernel :
“iommu=pt amd_pstate=passive”

see this topic

How to use AMD P-State in Linux

Up to date guide is here Linux 5.17 is here and just around the corner for Arch users who dont build their own Kernels and have it already. Even if you do here is the short and easy of using the new P-State Driver for AMD CPUs. Ondemand seems to deliver the best performance/power savings over schedutil with p-state at the moment. It should be noted this is only for Zen2 and newer First check if support is already enabled with lscpu | grep cppc if you get no output then to 2 Make …