Messages in this thread | | | Date | Wed, 3 May 2006 22:09:50 -0700 | From | Andy Isaacson <> | Subject | Re: cpufreq oddness on 2.6.16-rc1-mm4 |
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On Mon, May 01, 2006 at 01:59:27PM -0700, Andrew Morton wrote: > Andy Isaacson <adi@hexapodia.org> wrote: > > On Sun, Jan 29, 2006 at 02:45:33PM -0800, Andrew Morton wrote: > > > git-cpufreq.patch > > > > I haven't had time to debug it further, but cpufreq seems broken on my > > Thinkpad X40 with 2.6.16-rc1-mm4. It was working fine with > > 2.6.15-rc5-mm3. Automatic scaling doesn't function any more - my > > PentiumM 1.4 GHz is fixed at 598 MHz. And the relevant knobs in > > /sys/devices/system/cpu/cpu0 seem to be missing. Admittedly, I don't > > If this bug is still present in 2.6.17-rc3, could you please raise a report > at bugzilla.kernel.org so we can track it?
It turned out to be a configuration issue (as expected). My routine of "cp ../`uname -r`/.config .config; make oldconfig" did not do the right thing when doing that upgrade - I ended up with
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set CONFIG_X86_SPEEDSTEP_CENTRINO=m CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
which resulted in speedstep being disabled with no obvious clues what to do to turn it on. After some poking, I'm now running 2.6.17-rc1-mm3 with
CONFIG_CPU_FREQ_GOV_ONDEMAND=m CONFIG_X86_SPEEDSTEP_CENTRINO=y CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
and everything is working fine.
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