Public bug reported:
Hardware:
Processor: AMD X2 64 6000+ ("ADV6000IAA5DO")
Mainboard: ASRock ALiveXFire-eSATA2 R3.0
BIOS-Version: 3.10 from 2/24/2009 (latest today)
Issue:
Cool'n'Quiet Technology doesn't work. Both CPUs stay at maximum
Frequency even if there is a system load below 1% for hours.
Tested on:
- Ubuntu Destkop 8.10 32 Bit edition
- Ubuntu Desktop 8.10 64 Bit edition
- Ubuntu Desktop 9.04 64 Bit edition (Live-CD)
Error-Messages:
- dmesg output from Ubuntu 8.10 (both 32 and 64 Bit edition):
[ 14.628164] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor
6000+ processors (2 cpu cores) (version 2.20.00)
[ 14.628186] powernow-k8: ACPI Processor support is required for SMP systems
but is absent. Please load the ACPI Processor module before starting this
driver.
[ 14.628208] powernow-k8: ACPI Processor support is required for SMP systems
but is absent. Please load the ACPI Processor module before starting this
driver.
[ 5266.884114] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor
6000+ processors (2 cpu cores) (version 2.20.00)
[ 5266.884138] powernow-k8: ACPI Processor support is required for SMP systems
but is absent. Please load the ACPI Processor module before starting this
driver.
[ 5266.884158] powernow-k8: ACPI Processor support is required for SMP systems
but is absent. Please load the ACPI Processor module before starting this
driver.
- dmesg output from Ubuntu 9.04 (64 Bit edition, Live-CD, Daily Build from 22nd
March 09):
[ 4.114133] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor
6000+ processors (2 cpu cores) (version 2.20.00)
[ 4.114159] [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.
[ 4.114246] [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.
Expected:
The CPU should lower its frequency if there is not much CPU utilization.
What happend instead:
Permanently CPU frequency is at maximum.
** Affects: ubuntu
Importance: Undecided
Status: New
--
AMD 6000+ Cool'n'Quiet does not work (ACPI)
https://bugs.launchpad.net/bugs/347002
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