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Over 2026-10-02..05: 13 resumes after sleeps of 1.5 h or less > had no 400 MHz samples at all. The one resume after an 8.9 h s2idle > had all cores at 400 MHz for the first ~9 s of the log (the log > starts ~1 s after "PM: suspend exit"): > > Busy% Bzy_MHz PkgTmp GFXMHz PkgWatt > 16.37 400 25 400 2.38 > 73.94 400 26 400 3.23 > 49.75 400 27 400 2.87 > ... (6 more samples at 400 MHz, 2.8-3.2 W) > 40.94 480 28 400 3.04 > 37.83 3557 39 400 10.57 > > During exactly those seconds, gt0/freq0/throttle/reasons reported > "pl1", then "none". So the package was being power-limited while > drawing ~3 W against a 34 W PL1, at 25-28 C. That matches your > energy-averaging hypothesis. > > Ruled out on this machine: > - ACPI _PPC: booted with processor.ignore_ppc=1, and scaling_max_freq > stayed at 4.7 GHz during the episode. > - Thermal: package_throttle_count did not change during the window. > > I have not captured MSR 0x19C bits 10-11 yet. > > Thanks, > Scrimas If this is anything like the similar issue that was reported on some AMD systems; try unplugging and plugging back in the power adapter while in the bad state. If it's already unplugged, plug it in and then unplug it again. Does that help?