As Doug correctly described, there is a active prochot situation on the system, so processor frequency is limited. Can you dump: #grep . /sys/class/powercap/intel-rapl/intel-rapl\:0/*
Also if you are able to boot the system without being stuck at 800MHz, can you try #echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo and check, If BIOS has option to disable turbo you can try that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1945221 Title: CPU frequency stuck at minimum value..again Ubuntu 20.04.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1945221/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
