Ubuntu
linux package

  1. Bug #1690085
  2. Comment #647

Comment 647 for bug 1690085

Revision history for this message
In , to_load (toload-linux-kernel-bugs) wrote :

So if you got message with "typical current idle" option:
[Firmware Bug]: ACPI MWAIT C-state 0x0 not supported by HW (0x0)
it means probe of this C-state failed and it must be avoided by kernel.
Is there any difference between C-state list in OS with and without this option? I have only laptop with very limited BIOS and can't check.

And there only C0-1-2. What about C6? What says zenstates.py about that? Frankly, I have not tried this script - do not want disable power-saving features for laptop.

Also some overclocking may solve this problem (see comment 103). Turn on "performance bias" or similar option in BIOS for testing.