[ltp] C4 state on x60s - any news?

Henrique de Moraes Holschuh linux-thinkpad@linux-thinkpad.org
Wed, 16 May 2007 21:41:18 -0300

On Wed, 16 May 2007, Stefan Blum wrote:
> KDE. Now what strikes me is that the cpus only go as far as C3, and C4 

The Cx levels you see are ACPI-mapped ones.  C4 in thinkpads might be the
CPU's C8 for all we know.  One would need to check some ACPI tables to know
about it exactly (unless the kernel is exporting the mapping somewhere).

And usually, you only get C4 when on battery.

  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh