Re: HEADSUP: cpufreq import complete, acpi_throttling changed

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=1200
> > 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, 
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 
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 
the speed below 150 hard-hangs/freezes the laptop.

When booting with AC-power the laptop does not report any freq{,_levels}.  
It does not matter if I remove the AC-power once the computer is up and 
running, I always get this:

# sysctl dev.cpu.0.freq
dev.cpu.0.freq: -1


-- 
Morten Rodal

"A supercomputer is a device for turning compute-bound
 problems into I/O bound problems." -- Ken Batcher (Goodyear Aerospace)