On Mon, Sep 10, 2012 at 4:51 PM, Borislav Petkov <bp@xxxxxxxxx> wrote: >> [ 44.491795] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ (2 cpu cores) (version 2.20.00) >> [ 44.491852] trying to register driver powernow-k8 > > this is cpufreq_register_driver() > >> [ 44.491893] adding CPU 0 >> [ 44.491955] processor_perflib-0423 [4294967293] processor_get_performa: ACPI-based processor performance control unavailable > > this is acpi_processor_register_performance called by powernow_k8_cpu_init_acpi > >> [ 44.492103] register performance failed: bad ACPI data: -5 >> (I added the return value to the debug) > > Yep, cool. This tells us that it is -EIO which means > that acpi_processor_register_performance returns -EIO > after trying acpi_processor_get_performance_info. The ".. > performance control unavailable" message above tells us that > acpi_processor_get_performance_info fails when trying to get the _PCT > handle. > > So, to recheck: are you sure your "Cool'n'quiet" option in the BIOS is > enabled? If not, please enable it and retest. It has two states, "Automatic" and "Disabled", but anything OS-controlled (such as virtualization) has the same two states. It's set to "Automatic". I can probably boot back to a 3.2 where it was working, what ACPI debugging would be useful to you from a good kernel? -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
