http://bugzilla.kernel.org/show_bug.cgi?id=7954
Summary: Mac Pro: Ubuntu kernel: Speedstep-centrino does not work
Kernel Version: 2.6.19.1
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did *NOT* occur:None
Distribution:
Hardware Environment:
Software Environment:
Problem Description:
>David Tunkrans wrote:
>> I found your email adress in the speedstep centrino kernel
>source. Ive
>> put down a lot of time into getting ACPI and speedstep working on my
>> Mac Pro Ubuntu amd64 installation, with no success. Seems like the
>> cpufreq parameters are "missing" even though the specification says
>> that woodcrest Xeons do support speedstep. Also I suspect that there
>> has to be specific support for Xeon processors in this
>driver? I would
>> really appreciate if you could point me in the right direction.
I have tried the acpi-cpufreq driver, no difference there. I have read that some
people have gotten the speedstep-centrino driver working under 32-bit ubunto,
however Im using the amd64 ubunto distro and cant verify that. Also Im on my
fourth custom kernel, testing different config:s ( 2.6.19.1). Attached is the
acpidump + dmesg from my Mac Pro. If there is any more information that I can
provide you with, please let me know.
Steps to reproduce:
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