CC: +Viresh and linux-pm
On Saturday, December 28, 2013 12:09:01 AM David Woodfall wrote:On (27/12/13 19:53), Dave Woodfall <dave@xxxxxxxxxxxxxx> put forth the proposition:
>On (27/12/13 20:44), Heinz Diehl <htd@xxxxxxxxxxxxxxxxx> put forth the proposition:
>>On 27.12.2013, David Woodfall wrote:
>>>But any of the newer kernel versions I've tested only give me
>>>performance and powersave.
>>I don't use any Fedora kernel, so I can't tell which governors are
>>enabled in those. You should check the value of "CONFIG_CPU_FREQ_GOV"
>>in the respective .config file for your installed kernel.
>>In short: It seems that only "performance" and "powersave" are
>No, I used the same .config in all versions that I tested. I've also
>tried setting them as modules rather than built-in. This is the stock
># CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
># CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
># CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>And modprobing any governor module does not change the output of
I'm also experiencing this with a Intel G640 dual core machine.
Exactly the same effect.
Do you have CONFIG_X86_INTEL_PSTATE set?