Bug#638913: linux-source-3.0.0: cpu frequency speedstep_centrino Intel(R) Pentium(R) M processor
It works on my T42 with the 1.8 GHz version of this processor, using
lenny, squeeze and sid kernel versions. The BIOS version is 3.05a.
Maybe there was a regression in a later BIOS version?
Ben.
I have applied the newest BIOS version available at lenovo support for my T42 (model 2374):
BIOS Version 3.23 (1RETDRWW)
BIOS Date 2007-06-18
Embedded Controller Version 3.03
CPU Type Intel(R) Pentium(R) M processr,
CPU Speed 1.53GHz
Changing BIOS setting from Slow to Max custom setting changes time between
"Grub loading." to "Welcome to GRUB!" from 15 to 5 cursor blinks :).
However, when system is loaded then mprime benchmark shows exactly the same (SLOW) result regardless of BIOS setting.
System initiation changes the frequency to the lowest one.
Loading patched speedstep-centrino module causes mprime benchmark faster results.
rgds
rumi
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