Issue #642 has been updated by Patrick Rudolph.
Is this with current coreboot main branch? It says `intel_pstate: CPU model not supported` and on main there are no ACPI tables containing _CST. So C-states should not work at all. I've written https://review.coreboot.org/c/coreboot/+/92503 to fix that. It's possible that the package only supports C6 as deepest sleep state. C7 is special and only works on some mainboards. Also C7 might only be supported with intel_pstate driver as you can only advertise 3 different C-states in ACPI, usually C1, C3 and C6. Since C-states are generally working it's probably not the issue why turbo doesn't work. ---------------------------------------- Bug #642: x201t Turbo boost not working, CPU running hot https://ticket.coreboot.org/issues/642#change-2273 * Author: Janez Novak * Status: New * Priority: Normal * Category: chipset configuration * Target version: main * Start date: 2026-05-03 * Affected versions: main * Affected hardware: Lenovo X201 Tablet * Affected OS: All ---------------------------------------- Hello, i installed Coreboot on my x201t but turbo boost isn’t working and cpu won’t go past 2.1 GHz. My processor is an i7 640LM. Something i also noticed is that the system runs hotter with coreboot than with stock bios but i don’t know what’s causing that. ---Files-------------------------------- Kernel Logs.md (80.4 KB) Coreboot Logs.md (152 KB) Powertop Screenshot.png (34.5 KB) -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
