[Bug 55689] Maximum freq scaling not reacheable - centrino duo

frankuzzo francozamp at yahoo.it
Wed Apr 18 21:19:16 UTC 2007


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I can not set the processor speed to its maximum. I have a centrino duo
laptop (hp nc6320 with T2300E cpu)

I can explain that with an example (on cpu1, the same for cpu0):

cat /sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq
1667000

cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
1333000

echo "1667000" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq

cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq
1333000  <---this should be 1.6Ghz!! 

On installation phase (ubuntu 6.06) while still in live mode, the single
cpu recognised is able to reach maximum speed. I have an ipw3945
wireless card (seems to affect this-(?))

Thanks.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
     Assignee: Philip Paquette
         Status: Needs Info

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Maximum freq scaling not reacheable - centrino duo
https://bugs.launchpad.net/bugs/55689




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