12.2,x86_64, powernow-k8 is not launched

kernel 3.4.11-2.16-desktop
asus m2n (bios updated)

during boot cpufreq does not launch powernow-k8 module

if i try manually to launch it :

:~ # modprobe powernow-k8
FATAL: Error inserting powernow_k8 (/lib/modules/3.4.11-2.16-desktop/kernel/drivers/cpufreq/powernow-k8.ko): No such device
:~ #

i note that in grub options there is “acpi=off”. is it the pb causing powernow-k8 does not launch ?

if it is not in the option opensuse stops during booting

with mandriva 2010.2 i586 + kernel 3.4.11

  • there is no acpi=off and boots well
  • cpufreq run well
  • my pc runs well with “ondemand” profile

i have these error messages in boot.log

kernel: 1436.490597] powernow-k8: Found 1 AMD Athlon™ 64 X2 Dual Core Processor 5000+ (2 cpu cores) (version 2.20.00)
kernel: 1436.490607] [Firmware Bug]: powernow-k8: No compatible ACPI _PSS objects found.
kernel: 1436.490608] [Firmware Bug]: powernow-k8: Try again with latest BIOS.

so the question is why powernow-k8 from mandriva is compatible and not opensuse one ?

there is a patch since 18 jul 2012

CPU Frequency Scaling in Linux Kernel

if any hacker could fix powernow.k8 with the patch and supplies a packet to backport to kernel 3.4.11

thanks

or is it possible to get somewhere the last source (january 2013) of powernow-k8
and to compile it againt 3.4.11 ?