Spurious thermal shutdowns on Dell Studio 1557
smithi at nimnet.asn.au
Fri Apr 9 17:24:51 UTC 2010
On Fri, 9 Apr 2010, Bartosz Fabianowski wrote:
> The remaining frequencies are:
> 1597/35000 1463/31000 1330/27000 1197/23000 1064/19000 931/15000
Thanks. From that, turns out all of the others, requoting:
> dev.cpu.0.freq_levels: 1597/35000 1463/31000 1330/27000 1197/23000 1064/19000
> 931/15000 814/13125 698/11250 581/9375 465/7500 349/5625 232/3750 116/1875
were just throttling freqs, 7/8 of downto 1/8 of the now lowest 931MHz,
while those remaining come to 12, 11, 10, 9, 8 and 7 * ~133MHz (FWIW)
> Additionally, I do not remember how many CX states I had before - but I am
> pretty sure that it was more than just one. Now, the only CX state remaining
> is C1/3.
Same as the previous dev.cpu data you showed, anyway.
> Interestingly, disabling either the p4tcc or the acpi_throttle driver on its
> own does nothing to cut down on frequencies. Only when both are disabled via
> hints does the list drop from 13 frequencies to the 6 above.
That'd be right; they'll each try to attach, one claiming priority.
Ah, I see Kevin just chimed in about that, and better said.
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