Date: Thu, 24 Feb 2005 17:10:38 +0100 From: Morten Rodal <morten@rodal.no> To: Nate Lawson <nate@root.org> Cc: current@freebsd.org Subject: Re: HEADSUP: cpufreq import complete, acpi_throttling changed Message-ID: <200502241710.44321.morten@rodal.no> In-Reply-To: <421CD87C.70803@root.org> References: <42068A5C.1030300@root.org> <200502191911.36228.morten@rodal.no> <421CD87C.70803@root.org>
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On Wednesday 23 February 2005 20:24, Nate Lawson wrote:
> Morten Rodal wrote:
> > On Sunday 06 February 2005 22:21, Nate Lawson wrote:
> >>If you have throttling, please test the new configuration to be sure
> >> it still works as before. Final upcoming work will be manpage
> >> support and bugfixing as necessary.
> >
> > Throttling used to work on my Dell Inspiron 8200, but with the new
> > cpufreq/acpi_perf I only get errors when trying to set a new cpu
> > frequency, like this:
> >
> > # sysctl dev.cpu.0.freq=3D1200
> > acpi_perf0: Px transition to 1200 failed
> > acpi_perf0: set freq failed, err 6
> >
> > Regardless of what value I use, it either says 'Px transition to 1200
> > failed' or 'Px transition to 1700 failed.'
>
> These should be fixed now. Please cvsup and test.
The issue is partly fixed. I now see the following frequency levels if,=20
and only if, I booted the laptop on battery power:
# sysctl dev.cpu.0.freq_levels
dev.cpu.0.freq_levels: 1200/0 1050/0 900/0 787/0 750/0 656/0 600/0 562/0=20
525/0 450/0 393/0 337/0 300/0 262/0 225/0 187/0 150/0 112/0 75/0 37/0
Note that the native processor speed (1700 MHz) is not listed, and setting=
=20
the speed below 150 hard-hangs/freezes the laptop.
When booting with AC-power the laptop does not report any freq{,_levels}. =
=20
It does not matter if I remove the AC-power once the computer is up and=20
running, I always get this:
# sysctl dev.cpu.0.freq
dev.cpu.0.freq: -1
=2D-=20
Morten Rodal
"A supercomputer is a device for turning compute-bound
problems into I/O bound problems." -- Ken Batcher (Goodyear Aerospace)
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