[ltp] SpeedStep? - ACPI "throttling"
Jordi G. March
linux-thinkpad@linux-thinkpad.org
Tue, 13 Apr 2004 12:25:33 -0400
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Greetings,
I've got an A31p with a 1.8Ghz Mobile P4. When I suspend/resume, core
frequency varies from 1.2Ghz to 1.8Ghz without, apparently, any reason.
It's not a throttling problem because it resumes/starts with a "steady"
frequency (say 1.2Ghz or 1.8Ghz), so /proc/acpi/processor/CPU/throttling
always toggles according to that base (1.2Ghz or 1.8Ghz).
What I want to do is to adjust to 1.8Ghz in case I resume with a 1.2Ghz
"base", and I cannot achieve this by tuning /proc/.../throttling.
I've got a 2.4.24 kernel with ACPI + swsusp2 patches... I cannot go
through 2.6.x right now, and test (maybe?) SpeedStep functions as I
haven't been able to get swsusp2 working on 2.6 series.
Thank you very much.
Jordi
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Greetings,<BR>
<BR>
I've got an A31p with a 1.8Ghz Mobile P4. When I suspend/resume, core frequency varies from 1.2Ghz to 1.8Ghz without, apparently, any reason. It's not a throttling problem because it resumes/starts with a "steady" frequency (say 1.2Ghz or 1.8Ghz), so /proc/acpi/processor/CPU/throttling always toggles according to that base (1.2Ghz or 1.8Ghz). <BR>
<BR>
What I want to do is to adjust to 1.8Ghz in case I resume with a 1.2Ghz "base", and I cannot achieve this by tuning /proc/.../throttling. <BR>
<BR>
I've got a 2.4.24 kernel with ACPI + swsusp2 patches... I cannot go through 2.6.x right now, and test (maybe?) SpeedStep functions as I haven't been able to get swsusp2 working on 2.6 series.<BR>
<BR>
Thank you very much.<BR>
Jordi<BR>
<BR>
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