ThinkPad x61s

[Kevin Oberman]

> Date: Sat, 8 Mar 2008 00:33:40 +0100
> From: Guy Brand <gb at isis.u-strasbg.fr>
> Sender: owner-freebsd-mobile at freebsd.org
> 
> Dan Langille (dan at langille.org) on 04/03/2008 at 07:34 wrote:
> 
> > Are you running FreeBSD on a ThinkPad x61s?  Details please...
> 
> I do.
> 
> FreeBSD FreeBSD 8.0-CURRENT #58: Sun Mar  2 17:36:43 CET 2008
> snd_hda, acpi_ibm, if_wpi for hardware specific support. Xorg
> 7.3 working out of the box. cpufreq behaves strangely going
> from AC power to battery mode and back, so I removed it from
> the kernel config. Fan and thermal controls are fine. 6-cell
> battery provides ca. 260 mn of work time.

My experience is that you want to remove cpufreq on any newer
ThinkPad. My T43 "works" with CPUFREQ, but behaves very strangely.
Without it I see:
dev.cpu.0.freq_levels: 2000/27000 1750/23625 1600/22600 1400/19775 1333/19666 1166/17207 1066/16733 932/14641 800/13800 700/12075 600/10350 500/8625 400/6900 300/5175 200/3450 100/1725

Without it, I no longer see any energy values (all show '0') and going
on/off battery sometimes does not switch powerd properly. Also the
system will automatically drop the maximum speed to 800 MHz when on
battery. 

This all happens without cpufreq.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634
Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751
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