Hi, i have spent some time and did some google and got the answer. Its seems there is some bug in Powertop. One could refer http://osdir.com/ml/ubuntu-bugs/2011-08/msg41660.html. Now its working with previous version.. Thanks, ~Pankaj Singh On Mon, Oct 17, 2011 at 1:48 PM, pankaj singh <psingh.ait@xxxxxxxxx> wrote: > Hi, > I am trying to do power profiling of my laptop (DELL LATITUDE) where > i am using ubuntu 11.10. > For this i m using powertop and acpitool but unfortunately i am not > able to get C and P states. > > when i run `acpitool -c` it says > > Function Show_CPU_Info : could not read directory /proc/acpi/processor/ > Make sure your kernel has ACPI processor support enabled. > > I have already check the config file ACPI_PROCESSOR is enable(in kernel). > So do i require to install any specific driver to get C and P states. > > For information i m using kernel version 3.0.0-12-generic. > > -- > Pankaj SIngh > Phone No: 9921865080 > -- Pankaj SIngh Phone No: 9921865080 _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
