frequency scaling on D525MW not working properly

Sascha Wildner saw at
Sun Jul 22 12:27:28 PDT 2012

On Sun, 22 Jul 2012 21:16:54 +0200, Sven Gaerner <sgaerner at> wrote:

> On Sun, Jul 22, 2012 at 08:31:41PM +0200, Sascha Wildner wrote:
>> On Sun, 22 Jul 2012 13:46:41 +0200, Sven Gaerner <sgaerner at>  
>> wrote:
>> >[...]
>> >Also there is no sysctl available,
>> >so I guess powerd is also running not properly and the CPU
>> >frequency is not
>> >scaled in any way. After looking into the dmesg output, I guess
>> >some driver does
>> >not recognize parts of the hardware/ACPI stuff correctly (see
>> >below; the text is
>> >repeated for the other 3 logical CPUs). cpu0: on acpi0 cpu_cst0:
>> >on cpu0 cpu_pst0:
>> >Can't get _PSS package - AE_NOT_FOUND The dmesg is attached. It
>> >would be great
>> >if there is someone who can help me to get this fixed. If more
>> >details are
>> >necessary, just let me know. Sven
>> Is this a mobo with UEFI?
>> Sascha
> Yes, but booting via UEFI is disabled.

IIRC the performance state stuff will not work w/ UEFI.

Cc to sephe, as I think he knew more.


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