[Bugme-new] [Bug 20422] New: Wrong "current policy" in cpufreq-info for pentium centrino

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sat Oct 16 15:38:27 PDT 2010


https://bugzilla.kernel.org/show_bug.cgi?id=20422

           Summary: Wrong "current policy" in cpufreq-info for pentium
                    centrino
           Product: ACPI
           Version: 2.5
    Kernel Version: 2.6.35/36
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Other
        AssignedTo: acpi_other at kernel-bugs.osdl.org
        ReportedBy: lionel.jousset at free.fr
        Regression: Yes


Created an attachment (id=33772)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=33772)
Output of cpuinfo, cpufreq-info, lspci, modules and ioports.

Hi,
I'm running an ubuntu 10.10 on my laptop Inspiron 8600,
it doesn't scale its cpu frequency, that's "current policy" in cpufreq-info
wich is wrong:
"current policy: frequency should be within 600 MHz and 600 MHz."
the cpu is is blocked to 600 MHz and "cpufreq-set" can set anything.
I try to fix it in /etc/sysfs.conf but no way...
It doesn't work with kernel 2.6.35 but I have tested too the kernel found on:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.36-rc7-maverick/
(http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2010-10-16-maverick/ also)

The lastest bios was already on board and I ran a live cd 
ubuntu 10.4 with 2.6.32-24 kernel and frequency scaling worked well.

In the attachment, there is cpuinfo, cpufreq-info, lspci, modules and ioports.
I hope that it will help.

Thanks.
Lionel

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