Nate Lawson wrote: > Colin Percival wrote: > >> Eric Anderson wrote: >> >>> Eric Anderson wrote: >>> >>>> Eric Anderson wrote: >>>> >>>>> I have a Dell Latitude D610 laptop, and my kernel says: >>>>> >>>>> CPU claims to support Enhanced Speedstep, but is not recognized. >>>>> Please update driver or contact the maintainer. >>>>> cpu_vendor = GenuineIntel msr = 6120e2606000e26, bus_clk = 64 >>>>> >>>>> What does that mean to me? How can I fix it? >> >> >> >> If the BIOS knows about enhanced speedstep and ACPI (which it should) >> then you can probably get access to the different settings via the >> acpi_perf. > > > Yes, I have a patch that does this locally. > >>>> I hate when I reply to myself, but.. After doing some more research, I >>>> see that I have a Pentium M 750, but in cpufreq/est.c, I notice there >>>> isn't an entry for it. >>>> ... >>> >>> >>> I think a section for the 750 needs to >>> be added, but I'm not sure what to add exactly, and I'm now afraid I'll >>> light my computer on fire if I try. >> >> >> >> That's exactly the problem I have. In earlier Pentium M processors, >> Intel >> helpfully published a complete listing of the frequency/voltage pairs, >> which I encoded into est.c. With the 133MHz Pentium M processors, Intel >> decided not to publish all this; instead, they've just published the >> lowest >> and highest pairs. >> >> I am told that the data I need is available in the "Prescott, Nocona, and >> Potomac Processor BIOS Writer's Guide", but I can't get my hands on that >> since I haven't signed an NDA, and I've been too busy lately to work out >> how one goes about the process of obtaining and signing an Intel NDA. (I >> have no objection in principle to NDAs, as long as I'm able to publish >> the >> resulting code.) > > > Yep. I finally was able to borrow a friend's T42 for the weekend and > can test/finish my patch. I'll commit it once it's working. > I'd be more than happy to test against my laptop and send any necessary output. Do you think this could be affecting my S3 suspend mode at all? Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology I have seen the future and it is just like the present, only longer. ------------------------------------------------------------------------Received on Fri Mar 18 2005 - 18:46:42 UTC
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