What’s your result when run below cmd? And which kernel are you using? cat /sys/devices/system/cpu/cpu*/cpufreq/*driver | uniq -c intel_pstate cat /sys/devices/system/cpu/cpuidle/*driver intel_idle
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1951941 Title: Icelake cpus are not showing intel_pstate support on 20.04, 20.10, 21.04, 21.10 (ga & hwe kernels) Status in linux package in Ubuntu: Confirmed Bug description: Icelake cpus are not showing intel_pstate support on 20.04, 20.10, 21.04, 21.10 (ga & hwe kernels). Intel wants to investigate this, and they want to see if there are missing patches that could resolve this. [steps] $ dmesg | grep "intel_pstate" [actual] > intel_pstate: CPU model not supported [expected] > intel_pstate: supported [details] lore.kernel.org reference: https://yhbt.net/lore/all/CAAYoRsUcyFsFWDE=r+amgdba6hcgxgte2jj_nhas5e4tdgi...@mail.gmail.com/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1951941/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
