Messages in this thread | | | From | Ross Dickson <> | Subject | Re: idle Athlon with IOAPIC is 10C warmer since 2.6.3-bk1 | Date | Tue, 30 Mar 2004 10:57:37 +1000 |
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On Tuesday 30 March 2004 05:59, Prakash K. Cheemplavam wrote: > Prakash K. Cheemplavam wrote: > > Ross Dickson wrote: > > > >> On Saturday 20 March 2004 19:29, Prakash K. Cheemplavam wrote: > >> > >>> Len Brown wrote: > >>> > >>>> On Fri, 2004-03-19 at 14:22, Prakash K. Cheemplavam wrote: > >>>> > >>>> > >>>> > >>>>> Hmm, I just did a cat /proc/acpi/processor/CPU0/power: > >>>>> active state: C1 > >>>>> default state: C1 > >>>>> bus master activity: 00000000 > >>>>> states: > >>>>> *C1: promotion[--] demotion[--] latency[000] > >>>>> usage[00000000] > >>>>> C2: <not supported> > >>>>> C3: <not supported> > >>>>> > >>>>> I am currently NOT using APIC mode (nforce2, as well) and using > >>>>> vanilla 2.6.4. It seems C1 halt state isn't used, which exlains why > >>>>> I am having > >>> > >>> > >>> [snip] > >>> > >>>> > >>>> Actually I think it is that we don't _count_ C1 usage. > >>> > >>> > >>> Hmm, OK, then I am really puzzled what specifically about mm sources > >>> make my idle temps hotter, as I still couldn't properly resolve it > >>> what is causing it. I thought ACPI, but no, using APM only does the > >>> same (apm only with vanilla is low temp though.) > >> > >> > >> > >> Have you seen this thread, it may be relevant? > >> Re: [2.6.4-rc2] bogus semicolon behind if() > >> http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-03/4170.html > > > > > > So, I seem to have found the bugger causing higher temps: It is NVidia > binary driver, or rather its AGP part of the 53.36 driver. Using AGPGART > and Nvidia driver leaves my system cool. Using NVAGP it seems as though > C1 state isn't actually used anymore thus making the CPU hotter.
Hmmm. Would you happen to have a copy of athcool handy - it would be interesting to see the northbridge disconnect bit status - if its been turned off by their driver?
> > Tested with (and without) ACPI and APIC (and Ross' tack patch). > Currently running in PIC mode (with ACPI) and idle temp of 44°C (instead > of about 50°C...). But it was as cool in APIC mode. > > Of course I have to test few more days, but at least currently I am > happy again. :-) > > Prakash > > >
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