@Kyle -- its not clear that the commit you reference there will have any
effect on the message that @Shaved is seeing. That commit is an
improvement in the way that the driver calculates a latency calculation.
The check that triggers the error above seems to be unchanged before and
after this change.
You could confirm that by trying the latest mainline kernel which should
include the fix specified. This kernel can be found here:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.29-rc6/
The 'Your BIOS does not provide ACPI _PSS objects ..." seems to be
triggered when we cannot lookup the _PSS stuff and we have more than one
CPU enabled. That seems to trip when powernow_k8_cpu_init_acpi fails,
we might get more information from that if you enable cpufreq debugging.
I believe booting with the following added to the kernel command line
should turn that on:
cpufreq.debug=7
Expect additional information between these two lines in your dmesg
output:
Feb 16 22:36:42 the-beast kernel: [ 12.412954] powernow-k8: Found 1 AMD
Phenom(tm) II X4 940 Processor processors (4 cpu cores) (version 2.20.00)
Feb 16 22:36:42 the-beast kernel: [ 12.412968] [Firmware Bug]:
powernow-k8: Your BIOS does not provide ACPI _PSS objects in a way that Linux
understands. Please report this to the Linux ACPI maintainers and complain to
your BIOS vendor.
You would also be recommended to report this at least to the acpi list.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Andy Whitcroft (apw)
Status: Triaged => In Progress
** Changed in: linux (Ubuntu)
Status: In Progress => Incomplete
--
Error on Boot: [Firmware Bug]:Powernow-k8: Your BIOS does not provide ACPI_PSS
objects in a way that Linux understands.
https://bugs.launchpad.net/bugs/331691
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