PowerTOP not showing detailed C-state information

[Arjan van de Ven]

bluebird wrote:
> Hello everyone,
> 
> I tried out PowerTOP today and in short: It works great, but it *might*
> not display the C-state information table even if you have a Mobile CPU.
> 
> While running PowerTOP I generated some heavy IO-load and PowerTOP
> suddenly said:
> < Detailed C-state information is only available on Mobile CPUs
> (laptops) >
> 
> The message only remained for 5 seconds but as I own a Pentium M(Sonoma)
> the C-state table should be shown.
> 
> I did some research and found out that if the table
> in /proc/acpi/processor/*/power stays the same for more than 5 seconds
> the CPU is considered to be a non-Mobile CPU.
> 
> So my real question is: Wouldn't it be more appropriate to
> check /sys/modules/processor/paramaters/max_cstate > 1 to determine
> wheather it's a Mobile CPU or not?
> 

hmmm good point. This indeed needs fixing. It'll be fixed shortly; I'm 
considering doing another powertop release either late today or early 
tomorrow to roll up all the feedback I've gotten so far...


Thanks for the very useful and detailed bug report!