http://bugzilla.kernel.org/show_bug.cgi?id=9997

           Summary: acpi_cpufreq detects wrong frequencies for Pentium M 715
                    - Dothan on Acer Travelmate 4001 LMI
           Product: ACPI
           Version: 2.5
     KernelVersion: 2.6.22-14-generic
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Power-Processor
        AssignedTo: [EMAIL PROTECTED]
        ReportedBy: [EMAIL PROTECTED]


Latest working kernel version: -
Earliest failing kernel version: 2.6.10, no older kernel tested
Distribution: Ubuntu
Hardware Environment: Acer Travelmate 4001 LMI - M11
Software Environment: Ubuntu 5.04 - 7.10
Problem Description: 

On my Notebook (Acer travelmate 4001 LMI-M11) with ubuntu 7.10, my processor
gets identified incorrectly by acpi_cpufreq, this is due a buggy DSDT and
presend since i got the notebook in every kernel version i testet (Starting
with 2.6.10) i alwlays need to manually patch speedstep_centrino to include
special tables for my Dothan cpu. as referenced here
(http://lkml.org/lkml/2007/9/4/58) well, i report it, as it justified linux-phc
for me ATM. if theres any additional info i should provide, please tell me
uname -a
Linux plasmafire 2.6.22-14-generic #1 SMP Tue Dec 18 08:02:57 UTC 2007 i686
GNU/Linux


reported by acpi_cpufreq:
/cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
1600000 1400000 1200000 800000 600000

unloading acpi_cpufreq, manually loading speedstep_centrino with patched
Tables:
600000 800000 1000000 1200000 1500000

[EMAIL PROTECTED]:/sys/devices/system/cpu/cpu0/cpufreq # cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.50GHz
stepping        : 6
cpu MHz         : 1500.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat
clflush dts acpi mmx fxsr sse sse2 ss tm pbe up est tm2
bogomips        : 3199.46
clflush size    : 64


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