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A processor on acpi-cpufreq runs schedutil; the TPM comment says which TPMs feed the pool - #650
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…which TPMs feed the pool defconfig makes the userspace governor the default, which holds a processor that amd-pstate and intel_pstate do not drive at whatever clock the firmware left it. schedutil follows the load; amd-pstate's active mode, which its default already gives, is held by a fragment line too. On AMD, 6.18 turns a firmware TPM's hwrng off (PA-410), so only a discrete TPM or Pluton feeds the entropy pool there.
DevomB
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Oct 29, 2026
…hedutil there, so this adds intel_pstate and the dynamic EPP line to its block
This was referenced Oct 29, 2026
DevomB
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October 29, 2026 19:04
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CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=yand the userspace default off. x86_64_defconfig sets the userspace governor, so a processor neither amd-pstate nor intel_pstate drives stays at the clock the firmware left it. amd-pstate's active mode (X86_AMD_PSTATE=y,DEFAULT_MODE=3), today held by defaults alone, gets fragment lines. Both pstate drivers keep their own policies, so the ZBook's clock is unaffected.Kernel config only: stage 05 rebuilds, no image does.